Media type: E-Article Title: Beauty-up quarks coupling and duality sum rule Contributor: Pham, Xuan-Yem Published: Elsevier BV, 1988 Published in: Physics Letters B, 201 (1988) 2, Seite 269-273 Language: English DOI: 10.1016/0370-2693(88)90226-2 ISSN: 0370-2693 Keywords: Nuclear and High Energy Physics Origination: Footnote: