@article{RM_2008_63_2_a16,
     author = {M. I. Shtogrin},
     title = {Special isometric transformations of a~cone},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {388--390},
     publisher = {mathdoc},
     volume = {63},
     number = {2},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2008_63_2_a16/}
}