Grebogi, Celso; McDonald, Steven W.; Ott, Edward; Yorke, James A. (1985), "Exterior dimension of fat fractals", Physics Letters, 110 (1): 1–4, Bibcode:1985PhLA..110....1G, doi:10.1016/0375-9601(85)90220-8, MR 0794103 /wiki/Bibcode_(identifier)
Grebogi, Celso; McDonald, Steven W.; Ott, Edward; Yorke, James A. (1985), "Exterior dimension of fat fractals", Physics Letters, 110 (1): 1–4, Bibcode:1985PhLA..110....1G, doi:10.1016/0375-9601(85)90220-8, MR 0794103 /wiki/Bibcode_(identifier)
Grebogi, Celso; McDonald, Steven W.; Ott, Edward; Yorke, James A. (1985), "Exterior dimension of fat fractals", Physics Letters, 110 (1): 1–4, Bibcode:1985PhLA..110....1G, doi:10.1016/0375-9601(85)90220-8, MR 0794103 /wiki/Bibcode_(identifier)
MacDonald, N. (1985), "Fat fractals in the lung? A comment on a paper by Grebogi et al.", Physics Letters, 112 (8): 417–419, Bibcode:1985PhLA..112..417M, doi:10.1016/0375-9601(85)90415-3, MR 0812219 /wiki/Bibcode_(identifier)