TY - JOUR AU - Ma, Tianshui AU - Song, Yanan TI - Hopf $ {\pi } $-crossed biproduct and related coquasitriangular structures JO - Rendiconti del Seminario Matematico della Università di Padova PY - 2013 SP - 127 EP - 146 VL - 130 PB - Seminario Matematico of the University of Padua UR - http://archive.numdam.org/item/RSMUP_2013__130__127_0/ LA - en ID - RSMUP_2013__130__127_0 ER -