Submersed macrophyte growth at low pH

A modified single solution method for the determination of phosphate in natural waters

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Design and Analysis: A Researcher's Handbook

Albert E. Beaton, Geoffrey Keppel · American Educational Research Journal · 1975 · 5.9K citations

Arts, Design, Design Theory +3

Aquatic Chemistry. An Introduction Emphasizing Chemical Equilibria in Natural Waters.

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Natural Sciences, Chemistry, Environmental Chemistry +12

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David A. Aaker, Geoffrey Keppel · Journal of Marketing Research · 1976 · 2K citations

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The biology of aquatic vascular plants

Aquatic Botany · 1987 · 1.8K citations

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