@article{MSC_1999_1999_1_a2,
     author = {Turunen, Esko},
     title = {BL-\'algebras de l\'ogica difusa b\'asica.},
     journal = {Mathware & soft computing},
     pages = {49-61},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MSC_1999_1999_1_a2/}
}