Authors	Published	Title	Where	Link	LinkText
"Köthe, R. & Lehmeier, F."	"1996"	"SARA - System zur Automatischen Relief-Analyse"	"User Manual, 2. Edition, Dept. of Geography, University of Göttingen [unpublished]."	""	""
"Kiss, R."	"2004"	"Determination of drainage network in digital elevation models, utilities and limitations"	"Journal of Hungarian Geomathematics, 2, 16–29"	"https://real.mtak.hu/121965/1/Kiss_Richard_JHG.pdf"	"online"
"Conrad, O."	"1998"	"Ableitung hydrologisch relevanter Reliefparameter aus einem Digitalen Geländemodell (am Beispiel des Einzugsgebietes Linnengrund / Kaufunger Wald)"	"Diploma Thesis, Dept. of Geography, University of Göttingen"	"https://sourceforge.net/projects/saga-gis/files/SAGA%20-%20Older%20Releases/DiGeM%202.0/conrad_1998_diplom.pdf/download"	"online"
