A surprising method for polarising antiprotons Th. Walcher, H. Arenhövel, K. Aulenbacher, R. Barday and A. Jankowiak Eur. Phys. J. A, 34 4 (2007) 447-461 Published online: 06 February 2008 DOI: 10.1140/epja/i2007-10462-x