Balanoff, A.M.; Norell, M.A.; Grellet-Tinner, G.; and Lewin, M.R. Digital preparation of a probable neoceratopsian preserved within an egg, with comments on microstructural anatomy of ornithischian eggshells. Naturwissenschaften. 2008, 95 (6): 493–500. Bibcode:2008NW.....95..493B. doi:10.1007/s00114-008-0347-2.引文使用过时参数coauthors (帮助)
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Balanoff, A.M.; Norell, M.A.; Grellet-Tinner, G.; and Lewin, M.R. Digital preparation of a probable neoceratopsian preserved within an egg, with comments on microstructural anatomy of ornithischian eggshells. Naturwissenschaften. 2008, 95 (6): 493–500. Bibcode:2008NW.....95..493B. doi:10.1007/s00114-008-0347-2.引文使用过时参数coauthors (帮助)