Bondarenko P. P. «On the upper bound for the number of additional edges in minimal vertex extensions of colored circles» // 2013. №6 (Приложение) C.73-75
Bondarenko P. P. «On the upper bound for the number of additional edges in minimal vertex extensions of colored circles» // 2013. №6 C.73-75
Abrosimov M. B. «Minimal edge extensions of oriented and directed stars» // 2011. №2(12) C.77-89
Abrosimov M.B. , Dolgov A.A. «FAMILIES OF TOURNAMENTS EXTENSIONS » // 2008. №1(1) C.101-107