@article{SJIM_2012_15_4_a1,
     author = {Yu. E. Anikonov and M. V. Neshchadim},
     title = {Representations for the solutions and coefficients of second-order differential equations},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {17--23},
     year = {2012},
     volume = {15},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2012_15_4_a1/}
}