@article{VMUMM_1988_2_a24,
     author = {S. B. Gashkov},
     title = {Computational complexity of some classes of polynomials of several variables},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {89--91},
     publisher = {mathdoc},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1988_2_a24/}
}