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[Animals as carriers of information on the environment [use of mayfly larvae (Baetis rhodani) as indicator species in monitoring of inland water acidification]]
1982
Raddum, G.G. | Fjellheim, A. (Bergen Univ. (Norway). Zoologisk Museum)
The Norwegian University Library of Life Sciences - Norway
Bark beetles and air pollution [also incl. Ips typographus, Pityogenes chalcographus]
1989
Christiansen, E. (Norsk Institutt for Skogforskning, Aas (Norway). Inst. for Skogoekologi)
The Norwegian University Library of Life Sciences - Norway