1. Difficulty and complexity in dealing with visual pollution in historical cities: The historical city of Ibb, Yemen as a case study. Issue 1 (November 2020) Authors: Alwah, A A Q; Li, W; Alwah, M A Q; Drmoush, A A K; Shahrah, S; Tran, D T; Xi, L B Journal: IOP conference series Issue: Volume 601:Issue 1(2020) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗