@article{AIHPB_2013__49_3_698_0,
     author = {Ben Arous, Gerard and Hu, Yueyun and Olla, Stefano and Zeitouni, Ofer},
     title = {Einstein relation for biased random walk on {Galton-Watson} trees},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {698--721},
     publisher = {Gauthier-Villars},
     volume = {49},
     number = {3},
     year = {2013},
     doi = {10.1214/12-AIHP486},
     mrnumber = {3112431},
     language = {en},
     url = {http://www.numdam.org/articles/10.1214/12-AIHP486/}
}