Ustinovichius, Leonas, Romas Rasiulis, Česlovas Ignatavičius, and Tatjana Vilutienė. “Analysis of Waterproofing Defects and Technology Development for Car Parking Roofs: Lithuanian Case”. Journal of Civil Engineering and Management 18, no. 4 (September 11, 2012): 519-529. Accessed November 20, 2019. https://journals.vgtu.lt/index.php/JCEM/article/view/4480.