Ostriker, Jeremiah P. & Vishniac, Ethan T. (1986). "Effect of gravitational lenses on the microwave background, and 1146+111B,C". Nature. 322 (6082): 804. Bibcode:1986Natur.322..804O. doi:10.1038/322804a0.
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Ostriker, Jeremiah P. & Vishniac, Ethan T. (1986). "Effect of gravitational lenses on the microwave background, and 1146+111B,C". Nature. 322 (6082): 804. Bibcode:1986Natur.322..804O. doi:10.1038/322804a0.