00310nam a2200109Ia 450000500170000000800410001708200150005810000180007324500610009126000400015230000080019220260224040919.0260224s9999||||xx |||||||||||||| ||und||  a551.48 HEI  aHeinoven, P.  0aHydrological and limnological aspects of lake monitoring  aNew York: John Wiley & Sons. c2000  a732