@article{FPM_2000_6_2_a8,
     author = {V. O. Manturov},
     title = {On closedness of curves with periodic curvature},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {477--483},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2000_6_2_a8/}
}