@article{MM_1999_11_6_a6,
     author = {N. N. Kalitkin and S. L. Panchenko},
     title = {Optimal schemes for stiff nonautonomous systems},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {52--81},
     publisher = {mathdoc},
     volume = {11},
     number = {6},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1999_11_6_a6/}
}