TY - JOUR AU - Mackenzie, K. TI - Drinfel’d doubles and Ehresmann doubles for Lie algebroids and Lie bialgebroids JO - Electronic research announcements of the American Mathematical Society PY - 1998 SP - 74 EP - 87 VL - 04 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-98-00050-X/ DO - 10.1090/S1079-6762-98-00050-X ID - ERAAMS_1998_04_a10 ER -