@ARTICLE{Cohe56:Certain,
AUTHOR="J. W. Cohen",
TITLE="Certain delay problems for a full availability trunk group loaded
by two traffic sources",
JOURNAL="Communication news",
VOLUME=16,
NUMBER=3,
PAGES="105-113",
YEAR=1956,
REFERENCES=2,
KEYWORDS="Poisson distribution; traffic analysis; delay; FIFO",
ABSTRACT="The behaviour is investigated of a full availability trunk
grouphandling traffic originating from two sources which do not possess
the same facilities for access to the group. In part1 the assumption is
made that the calls from both sources have the same average duration, in
part2 the average duration is different. Inboth parts the distributions
of holding times and calls are Poisson distributions. Queue discipline
in both sources is FIFO.",
}

@ARTICLE{Burk56:Output,
AUTHOR="P. J. Burke",
TITLE="The output of a queueing system",
JOURNAL=or,
VOLUME=4,
PAGES="699-704",
YEAR=1956,
REFERENCES=6,
KEYWORDS="Output process; tandem queue",
ABSTRACT="For a queueing sytem with Poisson input, a single waiting line
without defections, and identically distributed independent (negative)
exponential service times, the equilibrium distribution of the number of
service completions in an arbitrary time interval is shown to be the
same as the input distribution, for any number of servers. This result
has applications in problems of tandem queueing. The essence of the
proof is the demonstration of the",
}

@ARTICLE{Dunn56:QUEUIAC,
AUTHOR="Dunn and  Flagle and Michael Hicks",
TITLE="The {QUEUIAC:} an electromechanical analog for the simulation of
waiting line problems",
JOURNAL=or,
VOLUME=4,
YEAR=1956,
KEYWORDS="Traffic machine; simulation",
}

@TECHREPORT{Moor56:Gedanken,
AUTHOR="E. F. Moore",
TITLE="Gedanken-Experiments on sequential machines",
INSTITUTION="Automata studies, Princeton university",
ADDRESS="Princeton",
YEAR=1956,
KEYWORDS="FSM; finite state machine",
}

@ARTICLE{Nich56:Normal,
AUTHOR="W. L. Nicholson",
TITLE="On the normal approximation to the hypergeometric distribution",
JOURNAL=ams,
VOLUME=27,
PAGES="471-",
YEAR=1956,
KEYWORDS="random number generation; RVG; hypergeometric distribution",
}

@ARTICLE{Phip56:Machine,
AUTHOR="T. E. Phipps",
TITLE="Machine repair as a priority waiting line problem",
JOURNAL=or,
VOLUME=4,
PAGES="76-85",
YEAR=1956,
REFERENCES=6,
KEYWORDS="Priority; spt",
ABSTRACT="A paper by Cobham in this journal, dealing with the assignment
of priorities in waiting-line problems, is taken as the basis for
treatment of a particular variety of machine-repair problem in which
shortest jobs, rather than first arrivals, receive highest priority.",
}

@PHDTHESIS{Schr56:Hysterese,
AUTHOR="F. Schreiber",
TITLE="Hysterese-Relaxation und Permeabilität von Kohlenstoff-haltigem
Silizium-Eisen",
SCHOOL="TH Stuttgart",
ADDRESS="Stuttgart",
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Magnetics",
}

@ARTICLE{Selm56:Irreducibility,
AUTHOR="E. S. Selmer",
TITLE="On the irreducibility of certain trionomials",
JOURNAL="Mathematica Scandinavia",
VOLUME=4,
PAGES="287-",
YEAR=1956,
KEYWORDS="Shift register sequences",
}

@ARTICLE{Elld56:Statistical,
AUTHOR="A. Elldin and G. Lind",
TITLE="Statistical Methods for Supervision of Telephone Exchanges and
networks",
JOURNAL=ericssont,
ADDRESS="Stockholm",
VOLUME=1,
YEAR=1956,
KEYWORDS="Measurement",
}

@ARTICLE{Hett56:Neue,
AUTHOR="E. Hettwig and K. Rohde",
TITLE="Neue Berechnungsunterlagen für die Projektierung von
Fernsprechanlagen",
JOURNAL=siemensz,
ADDRESS="München",
VOLUME=30,
NUMBER=1,
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Loss system",
}

@ARTICLE{Krem56:Zur,
AUTHOR="H. Kremer",
TITLE="Zur Statistik der vollkommenen Bündel in der Fernmeldetechnik",
JOURNAL=aeu,
VOLUME=10,
NUMBER=2,
PAGES="469-472, (58-64)",
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Loss system",
}

@INPROCEEDINGS{Rohd56:Neue,
AUTHOR="K. Rohde",
TITLE="Neue Ergebnisse der Verkehrstheorie für Planung und Betrieb von
Fernsprechanlagen",
BOOKTITLE="VDE-Fachberichte",
VOLUME=19,
PAGES="219-222 (1.3)",
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Loss system",
}

@ARTICLE{Stel56:Berechnung,
AUTHOR="F. K. Stell",
TITLE="Berechnung der Leitungszahlen bei doppeltgerichtetem Verkehr",
JOURNAL=nte,
VOLUME=6,
NUMBER=1,
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Overload control; flow control; communication network",
ABSTRACT="Inhalt: Kritische Betrachtungen über  M.  Langer:
Fernsprechtechnik Band  III Kapitel  XV und  den  von Lubberger
angegebenen Verkehrsrestkurven, Verkehrsreste und Gefahrzeit, kritische
Gegenüberstellung der unterschiedlichen Verfahren",
}

@ARTICLE{Stor56:Wartezeitlenkung,
AUTHOR="H. Störmer",
TITLE="Wartezeitlenkung in handbedienten Vermittlungsanlagen",
JOURNAL=aeu,
VOLUME=10,
NUMBER=2,
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Delay system",
}

@INPROCEEDINGS{Butl56:Machine,
AUTHOR="J. W. Butler",
TITLE="Machine sampling from given probability distributions",
BOOKTITLE="Symposium on Monte Carlo Methods",
EDITOR="H. A. Meyer",
PUBLISHER="John Wiley and Sons Inc.",
ADDRESS="New York",
VOLUME="I",
PAGES="249-264 (paper 18)",
YEAR=1956,
KEYWORDS="random number generation",
}

@ARTICLE{Jack56:Random,
AUTHOR="R. R. P. Jackson",
TITLE="Random queueing processes with phase-type service",
JOURNAL=jrss,
VOLUME=18,
NUMBER=1,
PAGES="129-132",
YEAR=1956,
KEYWORDS="Queueing network; product form; analysis",
}

@ARTICLE{Wilk56:Theories,
AUTHOR="R. I. Wilkinson",
TITLE="Theories of Toll Traffic Engineering in the {USA}",
JOURNAL=bstj,
VOLUME=40,
PAGES="421-514",
YEAR=1956,
}

@ARTICLE{Bret5611:Berechnung,
AUTHOR="G. Bretschneider",
TITLE="Die Berechnung von Leitungsgruppen für berfließenden Verkehr in
Fernsprechwählanlagen",
JOURNAL=ntz,
ADDRESS="Germany",
NUMBER=11,
PAGES="533-540",
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Overload control; flow control; communication network",
}

@ARTICLE{Elld56:Equations,
AUTHOR="A. Elldin",
TITLE="On Equations of State for a Two-Stage Link System",
JOURNAL=ericssont,
ADDRESS="Stockholm, Sweden",
YEAR=1956,
KEYWORDS="Link system",
}

@ARTICLE{Luch56:Solution,
AUTHOR="G. Luchak",
TITLE="The Solution of the single-Channel Queueing Equations
Characterized by a Time-Dependent Poisson-Distributed Arrival Rate and a
General Class of Holding Times",
JOURNAL=or,
VOLUME=4,
PAGES="711-732",
YEAR=1956,
KEYWORDS="Queueing system",
}

@ARTICLE{Olss56:Recording,
AUTHOR="K. M. Olsson",
TITLE="Some Recording Principles Applied in Time-Zone Metering",
JOURNAL=tele,
ADDRESS="Sweden",
NUMBER=1,
PAGES="1-7",
NOTE="presented at ITC-1, Copenhagen and in TELE, Swedish edition, 1955,
No 3, pp.  147-154",
YEAR=1956,
KEYWORDS="Traffic measurement; charging",
}

@ARTICLE{Ples56:Matematiske,
AUTHOR="H. C. Plessing",
TITLE="Matematiske Modeller for Telefonsamtaleforbrug",
JOURNAL="Teleteknik",
ADDRESS="Denmark",
VOLUME=4,
PAGES="183-198",
YEAR=1956,
LANGUAGE="Danish",
KEYWORDS="Telephony; model",
}

@ARTICLE{Renz56:Graphisches,
AUTHOR="A. Renz",
TITLE="Graphisches Verfahren für die Addition ungleicher Verkehrswerte",
JOURNAL=fernmeldepraxis,
ADDRESS="Germany",
NUMBER=7,
PAGES="248-254",
YEAR=1956,
LANGUAGE="German",
KEYWORDS="Traffic engineering",
}

@ARTICLE{Tnge56:Optimalmetoder,
AUTHOR="I. Tånge",
TITLE="Optimalmetoder för bestämning av vior och ledningsantal i
telefonnät med alternativa trafikvägar",
JOURNAL=tele,
ADDRESS="Sweden",
PAGES="1-21",
YEAR=1956,
LANGUAGE="Swedish",
KEYWORDS="Network planning",
}

@ARTICLE{Jens5602:Operationsanalysens,
AUTHOR="A. Jensen",
TITLE="Operationsanalysens Anvendelsesmuligheder",
JOURNAL="Ingenioren",
ADDRESS="Denmark",
NUMBER=6,
PAGES=8,
MONTH=feb,
YEAR=1956,
LANGUAGE="Danish",
}

@ARTICLE{Wilk5603:Theories,
AUTHOR="Roger L. Wilkinson",
TITLE="Theories for Toll Traffic Engineering in the {USA}",
JOURNAL=bstj,
VOLUME=35,
NUMBER=2,
PAGES="421-514",
MONTH=mar,
YEAR=1956,
KEYWORDS="queueing theory: loss system",
ABSTRACT="Present toll traffic engineering practices in the United
States are reviewed, and various congestion formulas compared with data
obtained on long distance traffic. Customer habits upon meeting busy
channels are noted and a theory developed describing the probable result
of permitting subscribers to have direct dialing access to high delay
toll trunk groups. Continent-wide automatic alternate routing plans are
described briefly, in which near no-delay service will permit direct
customer dialing. The presence of non-random overflow traffic from high
usage groups complicates the estimation of correct quantities of
alternate paths. Present methods of solving graded multiple problems are
reviewed and found unadaptable to the variety of trunking arrangements
occurring in the toll plan. Evidence is given that the principal
fluctuation characteristics of overflow-type of non-random traffic are
described by their mean and variance. An approximate probability
distribution of simultaneous calls for this kind of non-random traffic
is developed, and found to agree satisfactorily with theoretical
overflow distributions and those seen in traffic simulations. A method
is devised using ``equivalent random'' traffic, which has good loss
predictive ability under the ``lost calls cleared'' assumption, for a
diverse field of alternate route trunking arrangements. Loss comparisons
are made with traffic simulations results and with observation in
exchanges. Working curves are presented in which multi-alternate route
trunking systems can be laid out to meet economic and grade of service
criteria. Examples of their application are given.",
}

@TECHREPORT{Wall5603:Beräkning,
AUTHOR="B. Wallström",
TITLE="Beräkning av Crommelinfördelningen för 1 organ",
TYPE="Internal Report",
INSTITUTION="L M Ericsson AB",
ADDRESS="Stockholm, Sweden",
NUMBER="Ut 233-S1",
MONTH=mar,
YEAR=1956,
LANGUAGE="Swedish",
KEYWORDS="Traffic engineering",
}

@ARTICLE{Mora5606:Probability,
AUTHOR="P. A. P. Moran",
TITLE="A Probability Theory of a Dam with a Continuous Release",
JOURNAL="The Quarterly Journal of Mathematics -- Oxford Second Series",
VOLUME=7,
NUMBER=26,
PAGES="130-137",
MONTH=jun,
YEAR=1956,
KEYWORDS="stochastic processes",
}