@article{RM_1989_44_5_a4,
     author = {A. Ch. Chigogidze},
     title = {The theory of $n$-shapes},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {145--174},
     publisher = {mathdoc},
     volume = {44},
     number = {5},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1989_44_5_a4/}
}