Alexander, JP, Baker, R, Bebek, C
et al. (1998). Hadronic transitions Y(2S)-> Y(1S)
.
PHYSICAL REVIEW D, 58(5), 10.1007/BF01570762
Alexander, JP, Baker, R, Bebek, C et al. (1998). Hadronic transitions Y(2S)-> Y(1S)
. PHYSICAL REVIEW D, 58(5), 10.1007/BF01570762