@article{ZVMMF_2010_50_1_a7,
     author = {V. A. Garanzha},
     title = {Discrete extrinsic curvatures and approximation of surfaces by polar polyhedra},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {71--98},
     publisher = {mathdoc},
     volume = {50},
     number = {1},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2010_50_1_a7/}
}