000			00315nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a551.483
100			_aJansen,P.
245			_aPrinciples of river engineering .
260			_aPitman _b _c1979
300			_a509
653			_aRiver engineering
942			_2ddc _cBK
999			_c9488 _d9488