Wacław, Florek; Stanisław, Rudowski; Kazimierz, Szefler - In: Quaestiones Geographicae 29 (2010) 3, pp. 27-36
Basing on results of detailed hydroacoustic research, the geological structure of the bottom to 20-22 m b.s.l. has been studied. The palaeo-Słupia palaeo-valley, buried by a thin cover of marine sands, has been recognized and determined. Some stages of valley development may be distinguished....