By Williams P.G.L.   Bancroft G.M.   in Molecular Physics

ISSN:1362-3028|19|5|717-720

Taylor & Francis Ltd‎(1970)‎

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By Steinke E.   Williams P.G.   Ashford A.E.   in Annals of Botany

ISSN:0305-7364|77|4|413-420

Oxford University Press‎(1996)‎

Access to resources Favorite 1.8004941

By Christopher J. A.   Sears L. L.   Williams P. G.   Oliver J.   Hersh J.   in Journal of Developmental and Physical Disabilities

ISSN:1056-263X|16|2|163-170

Springer Publishing Company ‎(2004)‎

Access to resources Favorite 1.4403952