@article{VMUMM_2000_1_a1,
     author = {T. V. Rodionov},
     title = {Orthogonalization of ortho-similar systems by extension to a wider set},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {9--12},
     year = {2000},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2000_1_a1/}
}