@article{Kalbfleisch1985,
author = {Kalbfleisch, J. and Lawless, J.F.},
title= {The analysis of panel data under a Markov assumption},
year = {1985},
doi = {10.1080/01621459.1985.10478195},
journal = {Journal of the American Statistical Association},
volume = {80},
pages = {863--871},
}