Hewish, A.; Bell, S. J.; Pilkington, J. D. H.; Scott, P. F.; Collins, R. A. (1968). “Observation of a Rapidly Pulsating Radio Source”. Nature (Springer Science and Business Media LLC) 217 (5130): 709-713. Bibcode: 1968Natur.217..709H. doi:10.1038/217709a0. ISSN0028-0836.
Hewish, A.; Bell, S. J.; Pilkington, J. D. H.; Scott, P. F.; Collins, R. A. (1968). “Observation of a Rapidly Pulsating Radio Source”. Nature (Springer Science and Business Media LLC) 217 (5130): 709-713. Bibcode: 1968Natur.217..709H. doi:10.1038/217709a0. ISSN0028-0836.
Hewish, A.; Bell, S. J.; Pilkington, J. D. H.; Scott, P. F.; Collins, R. A. (1968). “Observation of a Rapidly Pulsating Radio Source”. Nature (Springer Science and Business Media LLC) 217 (5130): 709-713. Bibcode: 1968Natur.217..709H. doi:10.1038/217709a0. ISSN0028-0836.