Stereoselectivity in catalytic reactions: CO oxidation on Pd(100) by rotationally aligned O2 molecules L. Vattuone, A. Gerbi, L. Savio, D. Cappelletti, F. Pirani and M. Rocca Eur. Phys. J. B, 75 1 (2010) 81-87 Published online: 30 March 2010 DOI: 10.1140/epjb/e2010-00112-8