@article{VMUMM_1985_6_a6,
     author = {G. A. Iosif'yan and O. A. Oleinik and A. S. Shamaev},
     title = {Asymptotic expansion of eigenvalues and eigenfunctions of the {Sturm--Liouville} problem with rapidly oscillating coefficients},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {37--46},
     publisher = {mathdoc},
     number = {6},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_6_a6/}
}