A lower bound on the total outer-independent domination number of a tree

Marcin Krzywkowski

Comptes Rendus. Mathématique, Volume 349 (2011) p. 7-9

An upper bound on the 2-outer-independent domination number of a tree

Marcin Krzywkowski

Comptes Rendus. Mathématique, Volume 349 (2011) p. 1123-1125