Observation of ηc(1S) and ηc(2S) decays to K+K−π+π−π0 in two-photon interactions - Amo Sanchez, Pablo del; Marks, Jörg; Uwer, Ulrich (Physical review. D, Particles, fields, gravitation, and cosmology, 2011)
*The BABAR Collaboration: P. del Amo Sanchez, J. Marks, U. Uwer [und 439 weitere Personen]