@article{VUU_2019_29_2_a6,
     author = {O. S. Kostromina},
     title = {On limit cycles, resonance and homoclinic structures in asymmetric pendulum-type equation},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {228--244},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VUU_2019_29_2_a6/}
}