@article{VMUMM_2016_6_a3,
     author = {R. K. Klimov},
     title = {Closed geodesics on piecewise smooth constant curvature surfaces of revolution},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {25--31},
     publisher = {mathdoc},
     number = {6},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2016_6_a3/}
}