@article{GDZPPN002550407, title = {On quadratic stochastic processes.}, journal = {Aequationes mathematicae}, volume = {20}, year = {1980}, pages = {192-199}, zbl = {0468.60053}, url = {http://dml.mathdoc.fr/item/GDZPPN002550407} }
Nikodem, Kazimierz. On quadratic stochastic processes.. Aequationes mathematicae, Tome 20 (1980) pp. 192-199. http://gdmltest.u-ga.fr/item/GDZPPN002550407/