About HELLAND A
About Agricultural Univ. Norway, Aas, NOR
About HOLTAN G
About Norwegian Inst. Water Res., Oslo, NOR
About JORGENSEN P
About Agricultural Univ. Norway, Aas, NOR
About coastal area
About Norway
About Water quality research and measurement in general
About Limnology,potamology
About ノルウェー
About 海岸
About 河川
About 有機炭素
About 窒素
About 投入量