?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Somlyody%2C+L.&rft.aulast=Somlyody&rft.aufirst=L.&rft.date=1995&rft.isbn=0-471-95357-1&rft.title=Managing+eutrophication+in+Lake+Balaton&rft.btitle=Handbook+of+Systems+Analysis%2C+Volume+3%2C+Cases&rft.genre=bookitem