@article{VMUMM_2005_3_a0,
     author = {E. Yu. Smirnov},
     title = {Systems of generators for ideals of $S$-manifolds},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {3--6},
     year = {2005},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2005_3_a0/}
}