Morris, David M. A field-oriented competition index for young jack pine plantations and a computerized decision tool for vegetation management / D.M. Morris, R.R. Forslund. -- 1.vyd.

In New Forests. -- 5. (1991), s. 93-107. tab.. graf.

I. Forslund, R.R.
II. New Forests. -- 5. (1991), s. 93-107. tab.. graf.
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