@article{DMGAA_2000_20_1_a9,
     author = {Pinus, A.},
     title = {The positive and generalized discriminators don't exist},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {121--128},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2000_20_1_a9/}
}