Our recent peer-reviewed research paper: Analysis of shoreline changes and cliff retreat to support Marine Spatial Planning in Shabla Municipality, Northeast Bulgaria. Ocean & Coastal Management, Volume 156, 15 April 2018, Pages 127-140, http://dx.doi.org/10.1016/j.ocecoaman.2017.06.011 has been posted in a summary at the webpage of Coastal Care: http://coastalcare.org/2018/06/management-strategies-for-coastal-erosion-processes-by-nelson-rangel-buitrago/