@article{DAN_1979_244_5_a0,
     author = {S. D. Algazin and K. I. Babenko},
     title = {On a numerical algorithm for solving an eigenvalue problem for linear differential operators},
     journal = {Doklady Akademii Nauk},
     pages = {1049--1053},
     publisher = {mathdoc},
     volume = {244},
     number = {5},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_244_5_a0/}
}