Сергей Савельев о неравенстве мозгов и рас
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Уровень IQ (Мир в картах, индексах и графиках)
"The intelligence scores came from work carried out earlier this decade by Richard Lynn, a British psychologist, and Tatu Vanhanen, a Finnish political scientist, who analysed IQ studies from 113 countries, and from subsequent work by Jelte Wicherts, a Dutch psychologist." -- National IQ Scores - Country Rankings