The composition of cosmic rays at the knee S.P. Swordy, L.F. Fortson, J. Hinton, J. Hörandel, J. Knapp, C.L. Pryke, T. Shibata, S.P. Wakely, Z. Cao, M.L. Cherry, S. Coutu, J. Cronin, R. Engel, J.W. Fowler, K.-H. Kampert, J. Kettler, D.B. Kieda, J. Matthews, S.A. Minnick, A. Moiseev, D. Müller, M. Roth, A. Sill, G. Spiczak Astroparticle Physics 18 (2002) 129 (astro-ph/0202159)
The composition of cosmic rays at the knee J.R. Hörandel Frontier Objects in Astrophysics and Particle Physics, F. Giovannelli \& G. Mannocchi (eds.), Italian Physical Society, Editrice Compositori, Bologna, Italy (2005) p. 439; ISBN 88-7438-024-0, Il Nuovo Cimento B 120 (2005) 825 (astro-ph/0407554)
The knee in the energy spectrum of cosmic rays J.R. Hörandel Neutrinos and Explosive Events in the Universe, M.M. Shapiro, T. Stanev, J. Wefel (eds.), Springer, NATO Science Series (2005) p. 365
The origin of galactic cosmic rays J.R. Hörandel in Challenges in Particle Astrophysics, J. Dumarchez, J. Tran Thanh Van (eds.), The Gioi Publishers (2008) p. 201
The mass composition of cosmic rays measured with LOFAR J.R. Hörandel et al. Proceedings of the 6th Roma International Conference of Astroparticle Physics, RICAP 2016 Frascati, Italy; EPJ Web of Conferences 136 (2017) 02001