@article{SM_1975_25_2_a5,
     author = {A. A. Nudelman},
     title = {Isoperimetric problems for the convex hulls of polygonal lines and curves in multidimensional spaces},
     journal = {Sbornik. Mathematics},
     pages = {276--294},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {1975},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1975_25_2_a5/}
}