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

Groundwater flow and transport model calibration using environmental tracers / J. KANIA, S. WITCZAK, K. RÓŻAŃSKI, A. Zuber // W: FEM_MODFLOW : international conference on Finite Element Models, MODFLOW, and More: solving groundwater problems : 13–16 September 2004, Karlovy Vary, Czech Republic : proceedings / eds. Karel Kovar, Zbyněk Hrkal, Jiři Bruthans. — [Prague : Charles University. Faculty of Science], [2004]. — S. 151–154. — Bibliogr. s. 154, Abstr.

Implementation of the nitrate directive in Poland from hydrogeological point of view / Anna ŻUREK, Stanisław WITCZAK, Robert DUDA // UFZ-Bericht ; ISSN 0948-9452. — 2004 nr 18, s. 297–298. — 11th 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. — [S. l. : s. n., 2004]

Modeling of flow and transport in a porous groundwater system with the aid of $SF_{6}$ and tritium / Stanisław WITCZAK, Jarosław KANIA, Kazimierz RÓŻAŃSKI, Andrzej Zuber // W: Groundwater flow understending [Dokument elektroniczny] : from local to regional scales : XXXIII Congress IAH & 7ô Congress ALHSUD : Zacatecas, México, 2004. — Wersja do Windows. — Dane tekstowe. — [México? : IAH : ALHSUD, cop. 2004. — 1 dysk optyczny. — ISBN10: 970-32-1749-4. — S. [1–4]. — Wymagania systemowe: Adobe Acrobat Reader ; napęd CD-ROM. — Bibliogr. s. [4]

Properly verified flow and transport model as a basis for management of groundwater quality / J. KANIA, K. RÓŻAŃSKI, J. SZCZEPAŃSKA, S. WITCZAK, A. Zuber // Geochimica et Cosmochimica Acta : Journal of The Geochemical Society and The Meteoritical Society ; ISSN 0016-7037. — 2004 vol. 68 iss. 11 suppl., s. A455. — Publikacja dostępna online od: 2004-05-27. — 14th annual V M Goldschmidt Conference : Copenhagen, Denmark, June 05-11, 2004. — tekst: https://www-1sciencedirect-1com-1000027kg0224.wbg2.bg.agh.edu.pl/science/article/pii/S0016703704003278/pdfft?md5=8be5d61fe989a297852294c4016cdfc0&pid=1-s2.0-S0016703704003278-main.pdf

The Polish concept of groundwater vulnerability map / WITCZAK Stanisław, DUDA Robert, ŻUREK Anna // W: ITALIA 2004 : 32\textsuperscript{nd} international geological congress : Florence–Italy, August 20–28, 2004 : abstracts, Pt. 2 / International Union of Geological Sciences, EC European Commission. — [Italy : s. n.], [2004]. — S. 867, Poster 187-45. — Toż na CD-ROMie