TY - JOUR AU - Richard Crew TI - Rigidity and Frobenius Structure JO - Documenta mathematica PY - 2017 SP - 287 EP - 296 VL - 22 UR - http://geodesic.mathdoc.fr/articles/10.4171/dm/566/ DO - 10.4171/dm/566 ID - 10_4171_dm_566 ER -