Velegrakis, A. F.; Ballay, A.; Poulos, S.; Radzevicius, R.; Bellec, V.K.; Manso, F. (2010). European marine aggregates resources: Origins, usage, prospecting and dredging techniques. J. Coast. Res. SI 51: 1-14. https://dx.doi.org/10.2112/SI51-002.1, meer
EUMARSAND: European Marine Sand and Gravel Resources: Evaluation and Environmental Impact of Extraction, meer
Velegrakis, A. F.; Ballay, A.; Poulos, S.; Radzevicius, R.; Bellec, V.K.; Manso, F. (2010). European marine aggregates resources: Origins, usage, prospecting and dredging techniques. J. Coast. Res. SI 51: 1-14.