@article{DMGT_2020_40_4_a8,
     author = {Broere, Izak and Heidema, Johannes and Veldsman, Stefan},
     title = {Congruences and {Hoehnke} {Radicals} on {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {1067--1084},
     publisher = {mathdoc},
     volume = {40},
     number = {4},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2020_40_4_a8/}
}