@article{MO_2019_1_a5, author = {E. G. Smoljanova}, title = {Application of invariants for involution transforms of a triangle for recognition of graphic images}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {38--42}, year = {2019}, number = {1}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2019_1_a5/} }