@article{SPS_1999__33__277_0,
     author = {Watanabe, Shinzo},
     title = {The existence of a multiple spider martingale in the natural filtration of a certain diffusion in the plane},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {277--290},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {33},
     year = {1999},
     mrnumber = {1768001},
     zbl = {0953.60069},
     language = {en},
     url = {http://www.numdam.org/item/SPS_1999__33__277_0/}
}