@article{05875545,
title = {An analog of Wald's identity for random walks with infinite mean.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {50},
year = {2009},
pages = {836-840},
zbl = {1224.60098},
language = {en},
url = {http://dml.mathdoc.fr/item/05875545}
}
Korshunov, D.A. An analog of Wald's identity for random walks with infinite mean.. Sibirskij Matematicheskij Zhurnal, Tome 50 (2009) pp. 836-840. http://gdmltest.u-ga.fr/item/05875545/