@article{SPS_1971__5__1_0,
     author = {Artzner, Philippe},
     title = {Fonctions caract\'eristiques et mesures planes invariantes par rotation},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {1--16},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {5},
     year = {1971},
     mrnumber = {378024},
     language = {fr},
     url = {http://archive.numdam.org/item/SPS_1971__5__1_0/}
}