%0 Journal Article %A Yokura, Shoji %T Co-operational bivariant theory %J Mathematics Research Reports %D 2024 %P 21-55 %V 5 %I MathOA foundation %U https://www.numdam.org/articles/10.5802/mrr.20/ %R 10.5802/mrr.20 %G en %F MRR_2024__5__21_0