Madsen, I. H. From calculus to cohomology : de Rham cohomology and characteristic classes / Ib Madsen and Jørgen Tornehave. - Cambridge ; New York : Cambridge University Press, 1997. - vii, 286 p. : ill. ; ISBN: 0521580595 (hardback) 0521589568 (pbk.) Subjects--Topical Terms: Homology theory.Differential forms.Characteristic classes. LC Class. No.: QA612.3 / .M33 1997