@article{10_4064_cm120_2_9, author = {Piotr Ossowski and Janusz Zieli\'nski}, title = {Polynomial algebra of constants of the four variable {Lotka{\textendash}Volterra} system}, journal = {Colloquium Mathematicum}, pages = {299--309}, publisher = {mathdoc}, volume = {120}, number = {2}, year = {2010}, doi = {10.4064/cm120-2-9}, language = {fr}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm120-2-9/} }