@article{RM_1996_51_3_a7,
     author = {N. P. Dolbilin and M. A. Shtan'ko and M. I. Shtogrin},
     title = {On rigidity of polyhedral spheres with even-angle faces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {543--544},
     publisher = {mathdoc},
     volume = {51},
     number = {3},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1996_51_3_a7/}
}