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  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Botany Department, University of Leeds, EVA FREI &  R. D. PRESTON Authors * EVA FREI View author publications You can

also search for this author inPubMed Google Scholar * R. D. PRESTON View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and

permissions ABOUT THIS ARTICLE CITE THIS ARTICLE FREI, E., PRESTON, R. Variants in the Structural Polysaccharides of Algal Cell Walls. _Nature_ 192, 939–943 (1961).

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