Szukana fraza: [Abstract = "The paper presents the problems related to historical modeling of discharges, through which it is possible to recreate the range of floodingon the Ślęza River and the Widawa River, as a result of damminig on fortress weirs. This issue relates to the Wrocław fortifications at the turn of the nineteenth and twentieth, which was associated with the river network forming at this time in Wrocław."]