@article{ZNSL_1976_66_a2,
     author = {S. V. Buyalo},
     title = {Shortest paths on convex hypersurfaces of {Riemannian} spaces},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {114--132},
     publisher = {mathdoc},
     volume = {66},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_66_a2/}
}