On intuitionistic fuzzy negations and intuitionistic fuzzy extended modal operators. Part 2. Christopher Hinde Krassimir T. Atanassov 2134/4118 https://repository.lboro.ac.uk/articles/conference_contribution/On_intuitionistic_fuzzy_negations_and_intuitionistic_fuzzy_extended_modal_operators_Part_2_/9404705 On intuitionistic fuzzy negations and intuitionistic fuzzy extended modal operators. Part 2. 2009-01-26 17:09:02 untagged Information and Computing Sciences not elsewhere classified