@inbook{Allison1982,
author = {Allison, P.D.},
title= {Discrete-Time Methods for the Analysis of Event Histories},
year = {1982},
editor = {Leinhardt, S.},
booktitle = {Sociological Methodology},
address = {San Francisco},
publisher = {Jossey-Bass Publishers},
pages = {61--97},
}