@article{TRSPY_2002_239_a5,
     author = {O. N. German},
     title = {Sails and {Hilbert} {Bases}},
     journal = {Informatics and Automation},
     pages = {98--105},
     publisher = {mathdoc},
     volume = {239},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2002_239_a5/}
}