Participation in the national and the international projects:

Participation in the national projects:
• Project NZ 15/90: “Geological evolution of the Bulgaria and Balkan peninsula during Early Phanerozoic”
• Project NZ 813/97: “Integrated biostratigraphy, palaeogeography and correlation with Baltica and Gondwana of the Silurian and Lower Devonian in the Moesian Platform and Sofiyska Stara planinina”
• Project NZ 1404/04: “Pre-Variscan Paleozoic rocks in the Kraishte zone: biostratigraphy, correlations, paleogeography” Participation in the international projects:
• IGCP Project 351 “Early Paleozoic Evolution in NW Gondowana” 1995-1998
• IGCP Project 497 “The Rheic Ocean: Its Origin, Evolution and Correlatives”: 2004-2008
• IGCP Project 499 “Devonian Land-Sea Interaction:Evolution of Ecosystems and Climate” 2004-2008