@article{VVGUM_2019_22_4_a0,
     author = {A. Yu. Igumnov},
     title = {About the degree of nondegeneracy of a tetrahedron},
     journal = {Matemati\v{c}eska\^a fizika i kompʹ\^uternoe modelirovanie},
     pages = {5--29},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VVGUM_2019_22_4_a0/}
}