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Utopia and experiment : essays in the sociology of cooperation
Infield, Henrik F., (1971)
Geometrische Modelle zur Analyse empirischer Daten
Hartmann, Wolfgang, (1979)
A stochastic theory of social contacts : A laboratory study and an application to sociometry
Rainio, Kullervo, (1962)
Empirical mathematical rules concerning the distribution and equilibrium of population
Stewart, John Q., (1956)
Physics of popultation distribution
Stewart, John Q., (1958)
Physics of population distribution
Stewart, John Q., (1968)