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@article{ENMA_1991__4_186560, author = {I. Kupka}, title = {Introduction of the {Theory} of {Systems.} / {I.} {Kupka.}}, journal = {Ensaios Matem\'aticos}, pages = {5--108}, publisher = {mathdoc}, volume = {4}, year = {1991}, zbl = {1196.93001}, url = {http://geodesic.mathdoc.fr/item/ENMA_1991__4_186560/} }
I. Kupka. Introduction of the Theory of Systems. / I. Kupka.. Ensaios Matemáticos, Tome 4 (1991), pp. 5-108. http://geodesic.mathdoc.fr/item/ENMA_1991__4_186560/