Alejandro Adem
Books
Orbifolds and stringy topology
2003
ISBN 9780511284465
Cohomology of finite groups
1994
ISBN 9783662062821
Orbifolds in mathematics and physics
2002
ISBN 9780821829905
Orbifolds and Stringy Topology. Cambridge Tracts in Mathematics, Volume 171
2010
ISBN 9781280910098