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@article{IVM_2005_4_a1, author = {V. N. Bobochko}, title = {An unstable differential turning point in the theory of singular perturbations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {8--17}, publisher = {mathdoc}, number = {4}, year = {2005}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2005_4_a1/} }
V. N. Bobochko. An unstable differential turning point in the theory of singular perturbations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (2005), pp. 8-17. http://geodesic.mathdoc.fr/item/IVM_2005_4_a1/