Heavy-quark pair production in polarized photon-photon collisions at next-to-leading order: Fully integrated total cross sections Kniehl, Bernd Kotikov, A.V. Merebashvili, Z.V. Veretin, O.L. 2009 - Forschungsinformationssystem der UHH
Orthopositronium lifetime at O (?) and O (?3 ln?) in closed form Kniehl, Bernd Kotikov, A.V. Veretin, O.L. 2009 - Forschungsinformationssystem der UHH