000 00405nam a2200145Ia 4500
008 190529s9999 xx 000 0 und d
020 _a124023010
082 _a511.3
_bKAU
100 _aKaufmann, A.
245 0 _aIntroduction to the theory of fuzzy subsets
260 _aSan Francisco
_bAcademic press
_c1975
300 _a(v.1-Fundamental theoretical elements)
650 _aMathematics
942 _cS
999 _c115302
_d115301