Production and decay of $η^{′}(958)$ and $η (1440)$ in $\bar p p$ annihilation at rest - Amsler, C.; Anisovich, A. V.; Baker, C. A.; Barnett, B. M.; Batty, C. J.; Blüm, P.; Braune, K.; Credé, V.; Crowe, K. M.; Doser, M.; Dünnweber, W.; Engelhardt, D.; et al. (Springer, 2004)
http://dx.doi.org/10.1140/epjc/s2003-01540-6
Keywords: U