Heavy quark and quarkonium production at CERN LEP2: k T-factorization versus data A. V. Lipatov and N. P. Zotov Eur. Phys. J. C, 41 2 (2005) 163-172 Published online: 15 May 2005 DOI: 10.1140/epjc/s2005-02176-2