1. ALKEMIA—a VAX minicomputer database and program package for geochemical exploration;Ahlsved;J. Geochem. Explor.,1991
2. Atmospheric heavy metal deposition in northern Europe 1990,1992
3. Joint ecogeochemical mapping and monitoring in the scale of 1:1 million in the west Murmansk region and contiguous areas of Finland and Norway;Äyräs;Field Handbook,1995
4. Ecogeochemical investigation, Kola Peninsula: sulphur and heavy metal content in snow;Äyräs;Water, Air Soil Pollut.,1995
5. Comparison of sulphur and heavy metal contents and their regional distribution in humus and moss samples from the vicinity of Nikel and Zapoljarnij, Kola Peninsula, Russia;Äyräs;Water, Air Soil Pollut.,1996