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@article{MOMA_1988__105_2_178385, author = {Rainer Wittmann}, title = {Schwach irreduzible {Markoff-Operatoren.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {319--334}, publisher = {mathdoc}, volume = {105}, number = {2}, year = {1988}, zbl = {0641.47038}, url = {http://geodesic.mathdoc.fr/item/MOMA_1988__105_2_178385/} }
Rainer Wittmann. Schwach irreduzible Markoff-Operatoren.. Monatshefte für Mathematik, Tome 105 (1988) no. 2, pp. 319-334. http://geodesic.mathdoc.fr/item/MOMA_1988__105_2_178385/