@article{AA_2020_32_5_a1,
     author = {A. M. Budylin},
     title = {Singular matrix factorization problem with quadratically oscillating off-diagonal elements. {Quasiclassical} asymptotics of solutions with a diagonal element vanishing at the stationary point},
     journal = {Algebra i analiz},
     pages = {37--61},
     publisher = {mathdoc},
     volume = {32},
     number = {5},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2020_32_5_a1/}
}