Christian Abraham, Harald Hutter, Mark T. Palfreyman, Gabriele Spatkowski, Robby M. Weimer, Reinhard Windoffer, Erik M. Jorgensen, Rudolf E. Leube
Proc Natl Acad Sci U S A. 2006 May 23; 103(21): 8227–8232. Published online 2006 May 12. doi: 10.1073/pnas.0509400103