Institution: | 1.Technische Fakult?, Universit?t Bielefeld, Postfach 100131, 33501, Bielefeld, Germany ;2.School of Mathematical & Statistical Sciences, The University of Texas Rio Grande Valley, Brownsville, TX, 78520, USA ;3.MTA-BME Morphodynamics Research Group and Department of Geometry, Budapest University of Technology, Egry József utca 1., Budapest, 1111, Hungary ; |