Lane, Todd P.; Sharman, Robert D.; Trier, Stanley B.; Fovell, Robert G.; Williams, John K. (2012). “Recent Advances in the Understanding of Near-Cloud Turbulence”. Bulletin of the American Meteorological Society. 93 (4): 499. Bibcode:2012BAMS...93..499L. doi:10.1175/BAMS-D-11-00062.1.
Lane, Todd P.; Sharman, Robert D.; Trier, Stanley B.; Fovell, Robert G.; Williams, John K. (2012). “Recent Advances in the Understanding of Near-Cloud Turbulence”. Bulletin of the American Meteorological Society. 93 (4): 499. Bibcode:2012BAMS...93..499L. doi:10.1175/BAMS-D-11-00062.1.
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Ley, William Clement, Cloudland: A study on the structure and characters of clouds (London, England: Edward Stanford, 1894), pp. 104–105.