LAWA 1996:
Klassifikation “Planktondominierter Fließgewässer” (Phosphor) [Classification of plankton-dominated streams (phosphorus)], 1996
LAWA 1998:
LAWA-Verfahren zur “Chemischen Gewässerklassifikation” [LAWA procedure for “chemical classification of bodies of water”], 1998
Laws
Laws of Water:
Downloads and publications of the theme Water and Geology