@misc{Ritschard2013,
author = {Ritschard, G. and Bürgin, R. and Studer, M. and Müller, N.S.},
title= {TraMineRextras: Extras for use with the TraMineR package},
year = {2013},
URL = {https://cran.r-project.org/web/packages/TraMineRextras/index.html},
publisher = {CRAN},
address = {Geneva},
}