%0 Journal Article %A Yu. A. Neretin %T Spreading maps (polymorphisms), symmetries of Poisson processes, and matching summation %J Zapiski Nauchnykh Seminarov POMI %D 2002 %P 62-91 %V 292 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2002_292_a4/ %G en %F ZNSL_2002_292_a4