A surprising method for polarising antiprotons Th. Walcher, H. Arenhövel, K. Aulenbacher, R. Barday and A. Jankowiak Eur. Phys. J. A, 39 1 (2009) 137-138 Published online: 05 January 2009 DOI: 10.1140/epja/i2008-10705-4