Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1965_9_5_a3, author = {T. Yoshizawa}, title = {Liapunov's function and boundedness of solutions}, journal = {Matematika}, pages = {95--127}, publisher = {mathdoc}, volume = {9}, number = {5}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1965_9_5_a3/} }
T. Yoshizawa. Liapunov's function and boundedness of solutions. Matematika, Tome 9 (1965) no. 5, pp. 95-127. http://geodesic.mathdoc.fr/item/MAT_1965_9_5_a3/