@article{TRSPY_2018_302_a5,
     author = {Alexander A. Gaifullin and Leonid S. Ignashchenko},
     title = {Dehn invariant and scissors congruence of flexible polyhedra},
     journal = {Informatics and Automation},
     pages = {143--160},
     publisher = {mathdoc},
     volume = {302},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2018_302_a5/}
}