The PDF files of the talks from the workshop on macromolecular twinning at the 2009 ACA Meeting in Toronto may now be dowloaded free from the ACA web site: http://www.amercrystalassn.org
George Prof. George M. Sheldrick FRS Dept. Structural Chemistry, University of Goettingen, Tammannstr. 4, D37077 Goettingen, Germany Tel. +49-551-39-3021 or -3068 Fax. +49-551-39-22582
