TY  - BOOK
AU  - Kaufmann, Arnold
AU  - Swanson, D. L.
TI  - INTRODUCTION TO THE THEORY OF FUZZY SUBSETS
U1  - 511.3 
PY  - 1975///
CY  - New York
PB  - Academic Press
KW  - Set Theory
N1  - Contents : V. 1. Fundamental Theoretical Elements; Bibliography : P. 403-409
ER  -