Wiser, Ryan H., Mark Bolinger, Lewis Milford, Kevin Porter, and Roger Clark."Innovation, Renewable Energy, and State Investment: Case Studies of Leading Clean Energy Funds." (2002) 144.
Clark, Roger."Organizational Structure: The Sustainable Development Fund of Southeastern Pennsylvania."Case Studies of State Support for Renewable Energy (2002) 6.
Clark, Roger, Mark Bolinger, and Ryan H. Wiser."Public Education, Marketing, and Consumer Action: The Multi-Party Programs of Connecticut and Pennsylvania."Case Studies of State Support for Renewable Energy (2002) 6.