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Filters: Keyword is SOILS and Author is Hellum, Andreas Kare [Clear All Filters]
The frond size of bracken fern on forested outwash sand in northern lower Michigan. Soil Science Society of America Proceedings. 30:520-524.. 1966.
Factors influencing frond size of bracken on sandy soils in northern lower Michigan. Doctor of Philosophy:106pp... 1965.