%N 1 %K MĂĄsodrendĹą differenciĂĄlegyenlet, DifferenciĂĄlegyenlet - kĂśzĂśnsĂŠges, DifferenciĂĄlegyenlet - nemlineĂĄris %D 2021 %O Bibliogr.: p. 18-21. %L acta73653 %A Pei Minghe %A Wang Libo %A Lv Xuezhe %T Existence, uniqueness and qualitative properties of heteroclinic solutions to nonlinear second-order ordinary differential equations