@article{DMGT_1998_18_2_a5,
     author = {Galeana-S\'anchez, H. and Rinc\'on-Mej{\'\i}a, H.},
     title = {A sufficient condition for the existence of k-kernels in digraphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {197--204},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_1998_18_2_a5/}
}