Encyclopedia of Plant Physiology.
- Berlin ; Springer-Verlag ; New York : Heidelberg, 1976.
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- New Series Volume 4 .
Physiological plant pathology Edited by R. Heitefuss and P.H. Williams I (1976, 890 p.; ISBN 3-540-07557-7) :
Ботаника
spore germination stimulants in soil