Construction of a large-diameter dug well in the profile of unsaturated zone as a good database of percolating water composition / Agnieszka KARPIŃSKA-RZEPA, Magdalena MUSIAŁ, Stanisław WITCZAK // W: 11\textsuperscript{th} Magdeburg seminar on Waters in Central and Eastern Europe: assessment, protection, management : proceedings of the international conference : 18–22 October 2004 / eds. Walter Geller [et al] ; UFZ Centre for Environmental Research Leipzig-Halle. Department Inland Water Research. — [Leipzig : s. n.], [2004]. — (UFZ-Bericht ; ISSN 0948-9452 ; nr. 18/2004). — S. 244–245. — Bibliogr. s. 245