@article{02204823, title = {Smooth and discrete systems -- algebraic, analytic, and geometrical representations.}, journal = {Advances in Difference Equations [electronic only]}, volume = {2004}, year = {2004}, pages = {111-120}, doi = {10.1155/S1687183904401034}, zbl = {1077.34008}, language = {en}, url = {http://dml.mathdoc.fr/item/02204823} }
Neuman, František. Smooth and discrete systems -- algebraic, analytic, and geometrical representations.. Advances in Difference Equations [electronic only], Tome 2004 (2004) pp. 111-120. doi : 10.1155/S1687183904401034. http://gdmltest.u-ga.fr/item/02204823/