Onyango, V., M. Forghaniallahabadi, S. Costa Santos, and P. Gazzola. “Sectoral Interconnectedness: Insights from Five Sectors in ‘smart’ Urban Planning (Energy, Transport, Waste Management, Buildings, and Cities)”. European Scientific Journal, ESJ, Vol. 21, no. 13, May 2025, p. 23, doi:10.19044/esj.2025.v21n13p23.