@article{IVM_2007_1_a8,
     author = {V. F. Chistyakov and E. V. Chistyakova},
     title = {Nonlocal theorems on existence of solutions of differential-algebraic equations of index 1},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {76--81},
     publisher = {mathdoc},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2007_1_a8/}
}