@article{AUCMP_1987_28_1_a5,
     author = {Turunen, E.},
     title = {On generalized fuzzy relation equations: necessary and sufficient conditions for the existence of solutions},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {33--37},
     year = {1987},
     volume = {28},
     number = {1},
     mrnumber = {0929264},
     zbl = {0661.04004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_1987_28_1_a5/}
}