Sommer. On the question of kindred marriages and reduction of the number of ancestors in humans and animals. Zur Theorie der Verwandtenehe und des Ahnenverlustes bei Menschen und Tieren. Klinik f. psych. u. nerv. Kankh. v. R. Sommer. B. V. H. 4. S. 291
R. Averbuch
Neurology Bulletin ›› 1912, Vol. XIX ›› Issue (3) : 569 -569.
Sommer. On the question of kindred marriages and reduction of the number of ancestors in humans and animals. Zur Theorie der Verwandtenehe und des Ahnenverlustes bei Menschen und Tieren. Klinik f. psych. u. nerv. Kankh. v. R. Sommer. B. V. H. 4. S. 291
By reducing the number of ancestors, we mean the appearance of identical persons in the pedigree of children who happened from related marriages.
Kazan Bekhterev neurology archive
Averbuch R.
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