@incollection{AST_1980__75-76__167_0, author = {Kupka, Ivan}, title = {Some problems in accessibility theory}, booktitle = {Analyse des syst\`emes}, author = {Collectif}, series = {Ast\'erisque}, publisher = {Soci\'et\'e math\'ematique de France}, number = {75-76}, year = {1980}, zbl = {0458.93004}, mrnumber = {581713}, language = {en}, url = {archive.numdam.org/item/AST_1980__75-76__167_0/} }
Kupka, Ivan. Some problems in accessibility theory, dans Analyse des systèmes, Astérisque, no. 75-76 (1980), 10 p. http://archive.numdam.org/item/AST_1980__75-76__167_0/
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