@TechReport{Bier01,
author = {Michel Bierlaire },
title = {A theoretical analysis of the cross-nested logit model},
institution = {Operations Research Group ROSO, Ecole Polytechnique F\'ed\'erale de Lausanne},
number = {RO 2001.1218},
note = {Published as Bierlaire, M. (2006). A theoretical analysis of the cross-nested logit model, Annals of Operations Research144(1):287-300},
year = {2001}
}