@article{UFA_2011_3_1_a3,
     author = {D. K. Potapov},
     title = {Estimation of the bifurcation parameter in spectral problems for equations with discontinuous operators},
     journal = {Ufa mathematical journal},
     pages = {42--44},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2011_3_1_a3/}
}