@article{MAIS_2010_17_3_a3,
     author = {N. A. Dem'yankov},
     title = {Variational inequalities and the principle of virtual displacements},
     journal = {Modelirovanie i analiz informacionnyh sistem},
     pages = {48--57},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAIS_2010_17_3_a3/}
}