@article{STO_1982__6_3_38869,
     author = {Siegfried Gottwald and Ernest Czogala and Witold Pedrycz},
     title = {Measures of fuzziness and operations with fuzzy sets.},
     journal = {Stochastica},
     pages = {187},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1982},
     mrnumber = {MR0705763},
     zbl = {0523.94037},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/STO_1982__6_3_38869/}
}