@article{UFA_2015_7_2_a0,
     author = {G. L. Alfimov and M. E. Lebedev},
     title = {On regular and singular solutions for equation $u_{xx}+Q(x)u+P(x)u^3=0$},
     journal = {Ufa mathematical journal},
     pages = {3--16},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2015_7_2_a0/}
}