Gordon, M.S.; Goldhagen, P.; Rodbell, K.P.; Zabel, T.H.; Tang, H.H.K.; Clem, J.M.; Bailey, P. (2004). «Measurement of the flux and energy spectrum of cosmic-ray induced neutrons on the ground». IEEE Transactions on Nuclear Science51 (6): 3427-3434. ISSN0018-9499. doi:10.1109/TNS.2004.839134.
Gordon, M.S.; Goldhagen, P.; Rodbell, K.P.; Zabel, T.H.; Tang, H.H.K.; Clem, J.M.; Bailey, P. (2004). «Measurement of the flux and energy spectrum of cosmic-ray induced neutrons on the ground». IEEE Transactions on Nuclear Science51 (6): 3427-3434. ISSN0018-9499. doi:10.1109/TNS.2004.839134.