1. NATO ASI Series;Andreu J.,1991
2. Avdagic, I. and Corovic, A. Proceedings of the 22nd IAH Congress: Water Research in Mountainous Regions. Lausanne, Switzerland. Defining of protective zones of karsts mountainous springs, Edited by: Parriaux, A. Vol. 2, 27 August–1 September. pp.1122–1129.
3. Bartolomei, C., Celico, P. and Pecoraro, A. Ipotesi di alimentazione artificiale della falda di base del massiccio carbonatico dei Monti Lepini (Lazio Meridionale). Proceedings of the 4thConvegno Internazionale sulle Acque Sotterranee. February17–21. Edited by: Aureli, A. pp.1–28. Acireale, Italy: UNESCO.
4. Protection of karst aquifers in the Dinarides in Croatia