AIR POLLUTION IMPACTS ON FOREST TREES: EFFECTS OF FLUORIDES; pp. 1–6

ON THE MESOSCALE HETEROGENEITY OF THE BALTIC SEA PELAGIC ENVIRONMENT: SOME METHODOLOGICAL INFERENCES OF THE JOINT STUDY PEX '86; pp. 7–15

SEASONAL CHANGES IN PHOTOSYNTHETIC PARAMETERS OF PICEA ABIES (L.) KARST.; pp. 16–21

CLIMATE – RADIAL INCREMENT RELATIONSHIPS IN ESTONIAN CONIFER STANDS; pp. 22–27