@article{MM_1992_4_8_a9,
     author = {T. G. Alavidze},
     title = {Nongroup factorization of systems of evolution equations},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {107--118},
     year = {1992},
     volume = {4},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1992_4_8_a9/}
}