@article{AA_2013_25_5_a7,
     author = {T. A. Suslina},
     title = {Approximation of the resolvent of a~twoparametric quadratic operator pencil near the bottom of the spectrum},
     journal = {Algebra i analiz},
     pages = {221--251},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2013_25_5_a7/}
}