@article{DAN_1984_278_6_a6,
     author = {M. M. Khapaev},
     title = {An algorithm for the integration of singularly perturbed systems},
     journal = {Doklady Akademii Nauk},
     pages = {1313--1315},
     publisher = {mathdoc},
     volume = {278},
     number = {6},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_278_6_a6/}
}