Damas Mora JM، Jenner FA، Eacott SE (1980). "On heautoscopy or the phenomenon of the double: Case presentation and review of the literature". Br J Med Psychol. ج. 53 ع. 1: 75–83. DOI:10.1111/j.2044-8341.1980.tb02871.x. PMID:6989391.
Damas Mora JM، Jenner FA، Eacott SE (1980). "On heautoscopy or the phenomenon of the double: Case presentation and review of the literature". Br J Med Psychol. ج. 53 ع. 1: 75–83. DOI:10.1111/j.2044-8341.1980.tb02871.x. PMID:6989391.