@article{SPS_1997__31__126_0,
     author = {Galtchouk, Leonid I. and Novikov, Alexandre A.},
     title = {On {Wald's} equation. {Discrete} time case},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {126--135},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {31},
     year = {1997},
     mrnumber = {1478723},
     zbl = {0882.60040},
     language = {en},
     url = {http://www.numdam.org/item/SPS_1997__31__126_0/}
}