au.\*:("FREDRIKSEN RL")
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A BATTERY POWERED PROPORTIONAL STREAM WATER SAMPLER.FREDRIKSEN RL.1969; WAT. RESOURCES RES.; USA; 1969(12), VOL. 5, NUM. 0006, P. 1410 A 1413Miscellaneous
NITROGEN ACCRETION AND AVAILABILITY IN SOME SNONBRUSH ECOSYSTEMSBINKLEY D; CROMACK K JR; FREDRIKSEN RL et al.1982; FOREST SCIENCE; ISSN 0015-749X; USA; DA. 1982; VOL. 28; NO 4; PP. 720-724; BIBL. 2 P.Article
THE INTERNAL ELEMENT CYCLES OF AN OLD-GROWTH DOUGLAS-FIR ECOSYSTEM IN WESTERN OREGONSOLLINS P; GRIER CC; MCCORISON FM et al.1980; ECOL. MONOGR.; ISSN 0012-9615; USA; DA. 1980; VOL. 50; NO 3; PP. 261-285; BIBL. 4 P.Article