Galois Theory, Hopf Algebras, and Semiabelian Categories
George Janelidze, Bodo Pareigis, and Walter Tholen
Volume 43, 2004 Lie-Rinehart Algebras, Descent, and Quantization Johannes Huebschmann Universite des Sciences et Technologies de Lille U. F. R. de Mathematiques CNRS-UMR 8524 F-59 655 VILLENEUVE D'ASCQ, France Johannes .