Low-energy photoproduction of $ω$ -mesons - Barth, J.; Braun, W.; Ernst, J.; Glander, K.-H.; Hannappel, J.; Jöpen, N.; Kalinowsky, H.; Klein, F. J.; Klein, F.; Klempt, E.; Lawall, R.; Link, J.; et al. (Springer, 2003)
http://dx.doi.org/10.1140/epja/i2003-10061-y
Keywords: U