1987

• THE GEOMETRY OF SATELLITE TRACES NEAR THE STOP POINTSKLIONER, S., Apr 1987, In: VVestnik Sankt-Peterburgskogo Universiteta : naučno-teoretičeskij žurnal. Serija 1, Matematika, mechanika, astronomija. 2, p. 89-96, 8 p.Research output: Contribution to journal > Research article
• Photosynthetic capacity, chloroplast pigments, and mineral content of the previous year's spruce needles with and without the new flush: analysis of the forest-decline phenomenon of needle bleachingLange, O., Zellner, H., Gebel, J., Schramel, P., Köstner, B. & Czygan, F., 1987, In: OecologiaElectronic (full-text) versionResearch output: Contribution to journal > Research article