Kammen DM, Mozafari M, Prull D. Sustainable Energy Options for Kosovo: An analysis of resource availability and cost. Berkeley: Energy and Resources Group, University of California - Berkeley; 2012.
Schewel L, Kammen DM. Smart Transportation: Synergizing Electrified Vehicles and Mobile Information Systems. Environment: Science and Policy for Sustainable Development. 2010;52(5):24-35. Abstract