@article{KUKZ_1970_7_7_a16,
     author = {V. I. Zhegalov},
     title = {On a class of higher order differential equations},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {129--134},
     publisher = {mathdoc},
     volume = {7},
     number = {7},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1970_7_7_a16/}
}