@article{DMGT_2007_27_1_a8,
     author = {Hansberg, Adriana and Volkmann, Lutz},
     title = {Characterization of block graphs with equal 2-domination number and domination number plus one},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {93--103},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2007_27_1_a8/}
}