@article{IVM_2002_5_a0,
     author = {V. N. Bobochko},
     title = {A~differential turning point in the theory of singular {perturbations.~II}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--13},
     year = {2002},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2002_5_a0/}
}