@ARTICLE{Kend49:Role,
AUTHOR="D. G. Kendall",
TITLE="On the role of a variable generation time in the development of a
stochastic birth process",
JOURNAL=biometrika,
VOLUME=36,
PAGES="316-330",
YEAR=1949,
REFERENCES=8,
KEYWORDS="Stochastic process; birth-death process; mathematical",
ABSTRACT="This paper presents a mathematical account of a stochastic
birthprocess in which the generation time is distributed like a $xy$
variate with $2k$ degrees of freedom.",
}

@ARTICLE{Enge49:Entwicklung,
AUTHOR="B. Engel",
TITLE="Entwicklung und Beurteilung von Mischungen in den
Gruppenwahlstufen",
JOURNAL=fernmeldepraxis,
NUMBER=11,
YEAR=1949,
LANGUAGE="German",
KEYWORDS="Grading",
ABSTRACT="1. Fortsetzung: Heft 2, 1950, 2. Fortsetzung und Schluß: Heft
3, 1950",
}

@BOOK{Reic49:Theory,
AUTHOR="H. Reichenbach",
TITLE="The theory of probability",
PUBLISHER="University of California Press",
ADDRESS="Berkeley and Los Angeles",
YEAR=1949,
KEYWORDS="Second level probablilities",
}

@BOOK{Zipf49:Human,
AUTHOR="G. K. Zipf",
TITLE="Human Behavior and the Principle of Least-Effort",
PUBLISHER="Addison-Wesley",
ADDRESS="Cambridge, MA",
YEAR=1949,
}

@ARTICLE{Chau49:Extension,
AUTHOR="J. Chauveau",
TITLE="Extension de la Formule d'Erlang au Cas où le Trafic Est Fonction
du Nombre d'Abonnes Occupes (Application au Calcul du Nombre de Circuits
de Connexion dans les Centraux Rotary de Paris)",
JOURNAL=atele,
NUMBER="8-9",
PAGES=9,
NOTE="presented at ITC-1, Copenhagen 1955",
YEAR=1949,
LANGUAGE="French",
KEYWORDS="Loss System; State Dependent Service",
}

@ARTICLE{Kost49:Accuracy,
AUTHOR="L. Kosten and J. R. Manning and F. Gaewood",
TITLE="On the Accuracy of measurements of Probabilities of Loss in
Telephone Systems",
JOURNAL=jrss,
ADDRESS="Great Britain",
VOLUME=11,
PAGES="54-67",
YEAR=1949,
KEYWORDS="Measurement; accuracy; telephony",
ABSTRACT="For a simple type of telephone systems, expressions are
obtained for the first few moments of the distributions of the number of
lost calls and the total time for which the system is blocked by
congestion. It is believed that the results will be valuable when
planning experiments to determine corresponding quantities in more
complicated systems, where the problems are less amenable to
mathematical analysis.",
}

@ARTICLE{Rabe49:Variations,
AUTHOR="F. W. Rabe",
TITLE="Variations of Telephone Traffic",
JOURNAL=ec,
ADDRESS="France",
VOLUME=26,
PAGES="243-248",
YEAR=1949,
KEYWORDS="Telephony; traffic measurement",
}

@INPROCEEDINGS{Jens49:Distribution,
AUTHOR="A. Jensen",
TITLE="Distribution Patterns Composed of a Limited Number of Exponential
Distributions",
BOOKTITLE="Den 11. Skandinaviske Matematikerkongres",
ADDRESS="Trondheim, Norway",
PAGES="210-215",
MONTH=aug,
YEAR=1949,
KEYWORDS="Traffic distribution",
}