Hägler, P.Kirschner, R.Schäfer, A.Szymanowski, L.Teryaev, O. V.2004-12-102004-12-1020012001http://hdl.handle.net/2003/1840010.17877/DE290R-12577enThe American Physical SocietyPhysical Review Letters530Towards a Solution of the Charmonium Production Controversy: k[perpendicular] Factorization versus Color-Octet Mechanism10.1103/PhysRevLett.86.1446article (journal)