Abrosimov Mihail Borisovich Russia Saratov State University, Russia, Saratov, Astrakhanskaya 83 mic@rambler.ru Author's articles About Reconstruction of Small Tournaments On Lower Bound of Edge Number of Minimal Edge 1-Extension of Starlike Tree On a Goodman–Hedetniemi Sufficient Condition for the Graph Hamiltonicity Construction of All Nonisomorphic Minimal Vertex Extensions of the Graph by the Method of Canonical Representatives Construction of All Minimal Edge Extensions of the Graph with Isomorphism Rejection