@article{DAN_1994_335_3_a11,
     author = {G. I. Bykovtsev and N. G. Bykovtseva},
     title = {Piecewise-linear potentials in nonlinear mechanics},
     journal = {Doklady Akademii Nauk},
     pages = {310--312},
     publisher = {mathdoc},
     volume = {335},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_3_a11/}
}