@article{IIGUM_2018_24_a6, author = {S. V. Sudoplatov}, title = {Combinations of structures}, journal = {The Bulletin of Irkutsk State University. Series Mathematics}, pages = {82--101}, publisher = {mathdoc}, volume = {24}, year = {2018}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IIGUM_2018_24_a6/} }