TY - JOUR AU - Andy R. Magid TI - The Picard-Vessiot closure in differential Galois theory JO - Banach Center Publications PY - 2002 SP - 151 VL - 58 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/BCP_2002__58_1_281834/ LA - en ID - BCP_2002__58_1_281834 ER -