@article{DAN_1989_308_2_a3, author = {K. V. Shakhbazyan}, title = {Representation of processes in graphs}, journal = {Doklady Akademii Nauk}, pages = {278--280}, publisher = {mathdoc}, volume = {308}, number = {2}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1989_308_2_a3/} }