@article{DMGT_1999_19_2_a9,
     author = {Harminc, Mat\'u\v{s} and Sot\'ak, Roman},
     title = {A note on kernels and solutions in digraphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {237--240},
     year = {1999},
     volume = {19},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_1999_19_2_a9/}
}