@article{SPS_1989__23__147_0,
     author = {Picard, Jean},
     title = {Martingales sur le cercle},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {147--160},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {23},
     year = {1989},
     mrnumber = {1022905},
     zbl = {0743.60047},
     language = {fr},
     url = {http://www.numdam.org/item/SPS_1989__23__147_0/}
}