@article{ZNSL_1976_58_a3,
     author = {B. A. Ivanov},
     title = {Approximate computation of the positive eigenvalue of a positive operator with a nonlinear occurrence of a parameter},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {37--39},
     year = {1976},
     volume = {58},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_58_a3/}
}