Advances and New Developments in Fuzzy Logic and Technology: Selected Papers from IWIFSGN'2019 – The Eighteenth International Workshop on Intuitionistic Fuzzy Sets and Generalized Nets held on October 24-25, 2019 in Warsaw, Poland

Uncertainty and Imprecision in Decision Making and Decision Support - New Advances, Challenges, and Perspectives: Selected Papers from BOS/SOR-2022, Held on October 13-15, 2022, and IWIFSGN-2022, Held on October 13-14, 2022, in Warsaw, Poland

Uncertainty and Imprecision in Decision Making and Decision Support: New Advances, Challenges, and Perspectives: Selected papers from BOS-2020, held on December 14-15, 2020, and IWIFSGN-2020, held on December 10-11, 2020 in Warsaw, Poland