TY - JOUR A1 - Samm, Doris A1 - Faissner, H. A1 - Heinrigs, W. A1 - Preussger, A. T1 - Search for the two-photon decay of a light penetrating particle from a 590 MeV proton beam dump / Faissner, H.; Heinrigs, W.; Preussger, A.; Reitz, J.; Samm, D. [u.a.] JF - Zeitschrift für Physik, C Particles and Fields. 44 (1989), H. 4 Y1 - 1989 SP - 557 EP - 566 ER - TY - BOOK A1 - Samm, Doris A1 - Faissner, H. A1 - Henrigs, W. A1 - Preussger, A. T1 - Further evidence for the radiative decay of a light, penetrating particle / Faissner, H. ; Heinrigs, W. ; Preussger, A. ; Samm, D. Y1 - 1982 N1 - Also published in INIS-mf--9311 PB - Technische Hochschule CY - Aachen ER -