Thanks to...

George Sheldrick, Garib Murshudov, Victor Lamzin, Tom Terwilliger, Kevin Cowtan, Paul Emsley and their 
co-workers for allowing plugins to their programs (SHELX*, REFMAC/CCP4, ARP/wARP, RESOLVE, DM, PARROT, 
PIRATE, BUCCANEER, COOT).

Charles Ballard, Peter Briggs, Kay Diederichs, Francois Hoh, Guoqiang Pan, Imre Toro and Martyn Winn 
for debugging and suggestions for improvements.

All dataset contributors, and in particular, the JCSG (http://www.jcsg.org), Zbigniew Dauter and Manfred
Weiss.