@article{ZVMMF_1987_27_4_a14,
     author = {V. A. Lyul'ka and I. A. Rumyantsev},
     title = {The construction of a plane curve with a piecewise-linear change of curvature},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {626--629},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_4_a14/}
}