1. Geomorphology of the Bulgarian Black Sea Coast and Shelf, Sofia, Publ;Popov,1974
2. Engineering-geological characteristics of Varna Lakes Valley;Evstatiev,1988
3. Physical-geographical description of the Varna Bay and Lakes;Peev,2008
4. Envioromental aspects of Port Infrastructure development in Varna Lake, High Technologies, Buiness, Society;Toneva,2019
5. Final report of project “Technical passports of existing buildings and structures located in the territory of public transport ports with national significance”, HidroMap, 2012