@article{RM_1999_54_5_a16,
     author = {M. I. Shtogrin},
     title = {Rigidity of a~quadrillage of the pretzel},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1044--1045},
     publisher = {mathdoc},
     volume = {54},
     number = {5},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1999_54_5_a16/}
}