@article{SM_1974_23_1_a3,
     author = {G. A. Gal'perin},
     title = {Proof of convergence in the problem of rectification},
     journal = {Sbornik. Mathematics},
     pages = {69--83},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1974},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1974_23_1_a3/}
}