@article{MASLO_1971_21_2_a2, author = {\v{S}olt\'es, Pavol}, title = {Boundedness of {Solutions} of {Non-Linear} {Differential} {Equation} {Systems}}, journal = {Mathematica slovaca}, pages = {91--105}, year = {1971}, volume = {21}, number = {2}, mrnumber = {0306618}, zbl = {0225.34017}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1971_21_2_a2/} }