M.Shifman

The Baffling Semileptonic Branching Ratio of $B$ Mesons

I. Bigi, B. Blok, A. Vainshtein, 1993, hep-ph/9311339.

More on the Abrikosov Strings with Non-Abelian Moduli

G. Tallarita, M.Shifman, A.Yung, 2014, 1402.0733.