TY  - BOOK
AU  - Låg,Jul
ED  - International Symposium
ED  - Norwegian Academy of Science and Letters.
ED  - International Society of Soil Science.
TI  - Some geomedical consequences of nitrogen circulation processes / 
SN  - 82-90888-24-4
PY  - 1997///
CY  - Oslo
PB  - Norwegian Academy of Science and Letters
ER  -