By Fries C.   in Journal of Differential Equations

ISSN:0022-0396|146|1|185-202

Academic Press‎(1998)‎

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By Fries C.   Johansson O.   Pettersson B.   Simonsson P.   in Forest Ecology and Management

ISSN:0378-1127|94|1|89-103

Elsevier‎(1997)‎

Access to resources Favorite 6.369278