by Buckles, Billy P, Petry, Frederick E
Published in Fuzzy sets and systems (01.01.1982)

by Buckles, Billy P, Petry, Frederick E, Sachar, Harvinder S
Published in Fuzzy sets and systems (24.02.1989)

by Buckles, Billy P., Petry, Frederick E.
Published in IEEE transactions on systems, man, and cybernetics (01.01.1983)

by Buckles, Billy P., Petry, Frederick E.
Published in Information sciences (01.01.1984)

by Kavi, Krishna M., Buckles, Billy P., Bhat, U. Narayan
Published in IEEE transactions on software engineering (01.10.1987)