Čiegis, Remigijus, Dainora Grundey, and Dalia Štreimikiene. “Economic Aspects of Cities Sustainable Development Strategic Planning”. Technological and Economic Development of Economy 11, no. 4 (December 31, 2005): 260-269. Accessed July 2, 2024. https://aviation.vgtu.lt/index.php/TEDE/article/view/8543.