Modelling of attenuation processes for conservative components in the river catchment: a case study / J. KANIA, S. WITCZAK // W: European groundwater conference 2006 : Vienna, 22–23 June 2006 : proceedings. — Vienna : Umweltbundesamt GmbH, cop. 2006. — S. 140–141. — Bibliogr. s. 141

Modelling of attenuation processes for conservative components in the river catchment: a case study / KANIA J., WITCZAK S. // W: IAH-BGR-2006 : “Interaction between groundwater and surface water” : 14. 09.–16. 09. 2006 Berlin : abstracts / International Association of Hydrogeologists. German and Polish National Chapter. — [Berlin : s. n.], [2006]. — S. [1]

On conceptual and numerical modeling of flow and transport in groundwater with the aid of tracers : a case study / Jarosław KANIA, Kazimierz RÓŻAŃSKI, Stanisław WITCZAK, Andrzej Zuber // W: Viable methods of soil and water pollution monitoring, protection and remediation : proceedings of the NATO advanced research workshop on Viable methods of soil and water pollution monitoring, protection and remediation : Krakow, Poland, 27 June – 1 July 2005 / eds. Irena Twardowska [et al.]. — Dordrecht, the Netherlands : Springer ; in cooperation with NATO Public Diplomacy Division, 2006. — (NATO Science Series. IV, Earth and Environmental Sciences ; ISSN 1568-1238 ; vol. 69). — Opis częśc. wg okł.. — ISBN: 978-1-4020-4728-2. — S. 199–208. — Bibliogr. s. 208, Abstr.

On modelling of ground and surface water interactions / Jarosław KANIA, Andrzej HAŁADUS, Stanisław WITCZAK // W: Groundwater and ecosystems : proceedings of the NATO advanced research workshop on Groundwater and ecosystems : Canakkale, Turkey, 5–7 September 2005 / eds. Alper Baba, Ken W. F. Howard, Orhan Gunduz. — The Netherlands : Springer, 2006. — (NATO Science Series. IV, Earth and Environmental Sciences ; ISSN 1568-1238 ; vol. 70). — ISBN10: 1-4020-4736-3. — S. 183–194. — Bibliogr. s. 193–194, Abstr.

Polish methodology for assessment of the chemical status of groundwater / E. KMIECIK, K. RÓŻAŃSKI, J. SZCZEPAŃSKA, S. WITCZAK // W: European groundwater conference 2006 : Vienna, 22–23 June 2006 : proceedings. — Vienna : Umweltbundesamt GmbH, cop. 2006. — S. 218–219. — Bibliogr. s. 219

Porous waters of loess unsaturated zone as archives of anthropogenic airborne pollution: case study from southern Poland / S. L. WITCZAK, A. KARPIŃSKA-RZEPA, K. RÓŻAŃSKI, J. Czana // W: The 34\textsuperscript{th} Congress of International Association of Hydrogeologists : theme: Groundwater – present status and future task : October 9–13, 2006 Beijing, China : abstracts. — [China : s. n.], [2006]. — S. 199–200

Quality assurance during groundwater quality monitoring / S. WITCZAK, J. SZCZEPAŃSKA, E. KMIECIK, K. RÓŻAŃSKI // W: European groundwater conference 2006 : Vienna, 22–23 June 2006 : proceedings. — Vienna : Umweltbundesamt GmbH, cop. 2006. — S. 210–212. — Bibliogr. s. 212