01112nam0-22003251i-450-9900020524604033212002101082-90-88824-4000205246FED01000205246(Aleph)000205246FED0100020524620021010d--------km-y0itay50------baitaSome geomedical consequences of nitrogen circulation processes. Internationa Simposium. Oslo, 12-13 June 1997TheNorwegian Academy of Scence and Lettersed. by Jul LagOsloNorvegian Academy of Sciences and Letters1997261 p.22 cmCongressi VariMedicina GeografiaAntiparassitariCongressi610.09Låg,Jul<1915-2000>ITUNINARICAUNIMARCBK99000205246040332161 VII B.2/1466951 (27/04/1998)DAGENDAGENSome geomedical consequences of nitrogen circulation processes. Internationa Simposium. Oslo, 12-13 June 1997406111UNINAING01