University of Structural Engineering and Architecture “Lyuben Karavelov”, Sofia, BULGARIA, 1-3 November 2017
https://1drv.ms/b/c/b9f980bbcaa2448f/IQCrxiLfBdOUSp_CjpkvB6MoAY1jvU6AYNZjEWfXwI530iQ?e=IBkSgS
University of Structural Engineering and Architecture “Lyuben Karavelov”, Sofia, BULGARIA, 1-3 November 2017
https://1drv.ms/b/c/b9f980bbcaa2448f/IQCrxiLfBdOUSp_CjpkvB6MoAY1jvU6AYNZjEWfXwI530iQ?e=IBkSgS