@article{KYB_1992__28_Suppl_a7,
     author = {Harman, Blahoslav},
     title = {Sum and product of the modified real fuzzy numbers},
     journal = {Kybernetika},
     pages = {37--40},
     publisher = {mathdoc},
     volume = {28},
     number = {Suppl},
     year = {1992},
     mrnumber = {1226049},
     zbl = {0875.26033},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1992__28_Suppl_a7/}
}