1. Zona de vãrsare a Dunãrii;Almazov,1963
2. State of the marine environment in the Black Sea region;Balkas;UNEP Regional Seas Report and Studies,1990
3. Trends in the evolution of the mean Black Sea level;Bondar;Meteorology and Hydrology,1989
4. Secular evolution of some components of the hydrological Danube regime and of the mean level of the Black Sea;Bondar;Proceedings of the World Coast Conference,1993
5. Water flow and sediment transport of the Danube at its outlet into the Black Sea;Bondar;Meteorology and Hydrology,1991