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jan 1, 1952 - Беркхолдер П. США. Предложил классификацию биотических взаимодействий по количественным эффектам («+» – положительные, «0» – нейтральные, «–» – отрицательные)
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Alex Zaripov
22 Nov 2020
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jan 1, 1952
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~ 74 years ago
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