%0 Print %0 Book %A Windelmann, Rainer %I Springer-Verlag %D 1994 %C Berlin ; New York %G English %B Lecture notes in economics and mathematical systems %@ 3540578285 (Berlin : acid-free paper) %@ 0387578285 (New York : acid-free paper) %T Count data models : econometric theory and an application to labor mobility