Gray, Brayton (1984). "Unstable families related to the image of J". Mathematical Proceedings of the Cambridge Philosophical Society. 96 (1): 95–113. doi:10.1017/S0305004100061971. ISSN0305-0041. MR0743705.
Harper, John R. (1989). "A proof of Gray's conjecture". Algebraic topology (Evanston, IL, 1988). Contempemporary Mathematics. Vol. 96. Providence, Rhode Island: American Mathematical Society. pp. 189–195. MR1022681.
doi.org
Gray, Brayton (1984). "Unstable families related to the image of J". Mathematical Proceedings of the Cambridge Philosophical Society. 96 (1): 95–113. doi:10.1017/S0305004100061971. ISSN0305-0041. MR0743705.
worldcat.org
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Gray, Brayton (1984). "Unstable families related to the image of J". Mathematical Proceedings of the Cambridge Philosophical Society. 96 (1): 95–113. doi:10.1017/S0305004100061971. ISSN0305-0041. MR0743705.