@article{TRSPY_1991_196_a12,
     author = {S. S. Ryshkov and S. A. Chepanov and N. N. Yakovlev},
     title = {On the dissociation of point systems},
     journal = {Informatics and Automation},
     pages = {147--155},
     publisher = {mathdoc},
     volume = {196},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1991_196_a12/}
}