Bergfeld, T, Eisenstein, BI, Ernst, J
et al. (2000). Search for decays of B-0 mesons into pairs of leptons: B-0 -> e(+)e(-), B-0 ->mu(+)mu(-), and B-0 -> e(+/-)mu(-/+)
.
PHYSICAL REVIEW D, 62(9), 10.1103/PhysRevD.62.091102
Bergfeld, T, Eisenstein, BI, Ernst, J et al. (2000). Search for decays of B-0 mesons into pairs of leptons: B-0 -> e(+)e(-), B-0 ->mu(+)mu(-), and B-0 -> e(+/-)mu(-/+)
. PHYSICAL REVIEW D, 62(9), 10.1103/PhysRevD.62.091102