@Article{Goguen1967, author="J. A. Goguen", title="$L$-fuzzy sets", journal="J. Math. Anal. Appl.", year="1967", pages="145--174", volume="18" } @Article{Kuroki1981, author="N. Kuroki", title="On fuzzy ideals and fuzzy bi-ideals in semigroups", journal="Fuzzy Sets Systems", year="1981", pages="203--215", volume="5" } @Article{Liu1982, author="W. J. Liu", title="Fuzzy invariant subgroups and fuzzy ideals", journal="Fuzzy Sets and Systems", year="1982", pages="133--139", volume="8" } @Article{Malik1992, author="D. S. Malik, J. N. Mordeson", title="Extensions of fuzzy subrings and fuzzy ideals", journal="Fuzzy Sets Systems", year="1992", pages="245--251", volume="45" } @Article{Mukherjee1987, author="T. K. Mukherjee, M. K. Sen", title="On fuzzy ideals of a ring I", journal="Fuzzy Sets and Systems", year="1987", pages="99--104", volume="21" } @Article{Rosenfeld1971, author="A. Rosenfeld", title="Fuzzy groups", journal="J. Math. Anal. Appl.", year="1971", pages="512--517", volume="35" } @Article{Raj2020, author="Ch. Santhi Sundar Raj, B. Subrahmanyam, G. Sujatha, S. Nageswara Rao", title="L-fuzzy ideals of Semilattices", journal="Int. J. Math. Trends Tech.", year="2020", pages="160--175", volume="66" } @Article{Raj2019, author="Ch. Santhi Sundar Raj, B. Subrahmanyam, U. M. Swamy", title="Fuzzy Filters of Meet-Semilattices", journal="Int. J. Math. Appl.", year="2019", pages="67--76", volume="7" } @Article{Raj2020, author="Ch. Santhi Sundar Raj, B. Subrahmanyam, U. M. Swamy", title="Prime L-fuzzy filters of a Semilattice", journal="Ann. Fuzzy Math. Inform.", year="2020", pages="79--87", volume="20" } @Article{Swamy1988, author="U. M. Swamy, K. L. N. Swamy", title="Fuzzy Prime Ideals of Rings", journal="J. Math. Anal. Appl.", year="1988", pages="94--103", volume="134" } @Article{Zadeh1965, author="L. A. Zadeh", title="Fuzzy sets", journal="Inform. Control", year="1965", pages="338--353", volume="8" }