1. Black Sea and Sea of Azov;Caspers,1957
2. Nitrogen isotope fractionation in the nitrogen cycle;Cook,1970
3. Carbon-13 in Black Sea waters and implications for the origin of hydrogen sulfide;Deuser;Science,1970
4. Organic-carbon budget of the Black Sea;Deuser;Deep-Sea Res.,1971
5. Sulphur isotope effects in chemical and biological processes;Ford,1957