@article{SM_2002_193_12_a1,
     author = {A. B. Bogatyrev},
     title = {Effective approach to least deviation problems},
     journal = {Sbornik. Mathematics},
     pages = {1749--1769},
     publisher = {mathdoc},
     volume = {193},
     number = {12},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2002_193_12_a1/}
}