1. Report on Preliminary Investigations for Hosphorites in Continental Slope off Mangalore, Karnataka, SR-027 Cruise;Anil Kumar,2017
2. Preliminary Search for Phosphorite over Sea Mount (Calicut Mt.) Off Calicut, Kerala, SR-033 Cruise;Anil Kumar,2018
3. Phosphorites on the seafloor, origin, composition, and distribution;Baturin,1982
4. Phosphorites on the sea floor and their origin;Baturin;Mar. Geol.,1979
5. Radiometric evidence for recent formation of phosphatic nodules in marine shelf sediments;Baturin;Mar. Geol.,1972