@article{10_14708_wm_v23i01_3779,
     author = {W. Ostasiewicz},
     title = {Recenzja: {A.} {Kaufmann,} {Introduction} to the theory of fuzzy subsets},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 104--109},
     publisher = {mathdoc},
     volume = {23},
     number = {01},
     year = {1980},
     doi = {10.14708/wm.v23i01.3779},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v23i01.3779/}
}