@article{JSFU_2019_12_3_a2,
     author = {Ahmed Bendjeddou and Mohamed Grazem},
     title = {A class of quintic {Kolmogorov} systems with explicit non-algebraic limit cycle},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {285--297},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2019_12_3_a2/}
}