Title information : Mathematical fuzzy logic as a tool for the treatment of vague information Variant heading : \q12*stu_us_auth*1 stu24519 \q \q1013 stu_us_auth*stu24519 \d Gottwald Siegfried \q  In : \q12**1 stu156772 \q %continue : Information Sciences %continue : . Vol. 172, Iss. 1-2 (2005), s.41-71 Document kind : článok z periodika References : \q2479**1 stu_us_cat*stu157358*amg \q (1) - monografia