@article{DMGT_2020_40_1_a24,
     author = {F\"urst, Maximilian and Rautenbach, Dieter},
     title = {A {Short} {Proof} for a {Lower} {Bound} on the {Zero} {Forcing} {Number}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {355--360},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2020_40_1_a24/}
}