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@article{AM2_1980__21_182430, author = {Kazimierz Nikodem}, title = {On quadratic stochastic processes.}, journal = {Aequationes mathematicae}, pages = {192--199}, publisher = {mathdoc}, volume = {21}, year = {1980}, zbl = {0468.60053}, url = {http://geodesic.mathdoc.fr/item/AM2_1980__21_182430/} }
Kazimierz Nikodem. On quadratic stochastic processes.. Aequationes mathematicae, Tome 21 (1980), pp. 192-199. http://geodesic.mathdoc.fr/item/AM2_1980__21_182430/