@Article{AbbeBierTole07,
author = {Emmanuel Abbe and Michel Bierlaire and Tomer Toledo },
title = {Normalization and correlation of cross-nested logit models},
journal = {Transportation Research Part B: Methodological},
volume = {41},
number = {7},
pages = {795-808},
doi = {10.1016/j.trb.2006.11.006},
year = {2007}
}