Shoikhet, Boris Max Planck Institute for Mathematics, Max Planck Society;
https://doi.org/10.1007/s10485-013-9303-1 (Publisher version)
Shoikhet_tetramodules_oa_2013.pdf (Any fulltext), 208KB
Shoikhet, B. (2013). Tetramodules over a bialgebra form a 2-fold monoidal category. Applied Categorical Structures, 21(3), 291-309. doi:10.1007/s10485-013-9303-1.