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1 jan 1952 ano - Беркхолдер П. США. Предложил классификацию биотических взаимодействий по количественным эффектам («+» – положительные, «0» – нейтральные, «–» – отрицательные)

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ByAlex Zaripov
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1 jan 1952 ano
Agora
~ 73 years ago
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