[1] Cockayne E. J., Hedetniemi S. T.:
Towards a theory of domination in graphs. Networks 7 (1977), 247-261.
MR 0483788
[2] Cockayne E. J.:
Domination of undirected graphs - a suгvey. In: Theory and Applications of Graphs, Proc. Michigan 1976, ed. by Y. Alavi and D. R. Lick. Springer-Verlag Beгlin-Heidelberg-New York 1978, pp. 141-147.
MR 0499485