P. O. Swanberg

TERRITORY IN THE THICK‐BILLED NUTCRACKER NUCIFRAGA CARYOCATACTES.

P. O. Swanberg, 2008 .

Ecosystem studies in connection with the restoration of lakes: With 7 figures and 2 tables in the text and on 2 folders

L. Bengtsson, S. Fleischer, N. Malmer, 1972 .