Title:	 Transfers of Chern classes in BP-cohomology and Chow rings
Authors: Bj"orn Schuster
	 Nobuaki Yagita
Date:	 7 June 1999
Status:  Transactions Amer. Math. Soc. 353, No. 3 (2001), 1039-1054.

Abstract:
We study the $BP^*$-module structure of $BP^*(BG)$ for extraspecial 2-groups 
G using transfer and Chern classes. These give rise to p-torsion elements in 
the kernel of the cycle map from the Chow ring to ordinary cohomology.  
We also show that for $G$ extraspecial of order $2^7$ and $2^9$, 
$BP^*(BG)$ is not generated by transfers of Chern classes.