Left–right asymmetry for pion and kaon production in the semi-inclusive deep-inelastic scattering processBo Sun, Jun She, Bing Zhang, Ya-Jun Mao and Bo-Qiang MaEur. Phys. J. C, 65 1-2 (2010) 163-170DOI: https://doi.org/10.1140/epjc/s10052-009-1191-z