Phenological Observations of Nineteen Native Tree Species in Northeastern Minnesota

Clifford E. Ahlgren

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@article{3f8630b30a9e4baf9b93aa59177454b2,

title = "Phenological Observations of Nineteen Native Tree Species in Northeastern Minnesota",

author = "Ahlgren, {Clifford E.}",

year = "1957",

language = "English (US)",

volume = "38",

pages = "622--628",

journal = "Ecology",

issn = "0012-9658",

publisher = "Wiley-Blackwell",

number = "4",

}