TY - JOUR AU - Pennig, Ulrich TI - Exponential functors, R–matrices and twists JO - Algebraic and Geometric Topology PY - 2020 SP - 1279 EP - 1324 VL - 20 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2020.20.1279/ DO - 10.2140/agt.2020.20.1279 ID - 10_2140_agt_2020_20_1279 ER -