@article{UFA_2018_10_3_a2,
     author = {V. I. Kachalov},
     title = {On   holomorphic regularization  of strongly nonlinear singularly perturbed problems},
     journal = {Ufa mathematical journal},
     pages = {35--42},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2018_10_3_a2/}
}