References :

Harvard Ukrainian Research Institute (HURI)
Southwest Research and Information Center (SRIC)
New Jersey Institute of Technology (NJIT)
University of Toronto, Canada
Archaeological Institute of America
World Health Organization
Department of Water Resources California’s
The U.S. Department of Energy's Distributed Energy Program
Leonardo ENERGY
Managed by European Copper Institute & European network of 11 offices
Williams College in Williamstown, Massachusetts
International Institute for Environment and Development in London
Danielle Nierenberg & Worldwatch Institute
Murdoch University in Perth, Australia
Arizona Solar Center
Specht Harpman,New york
DTE Energy Ventures
Texas A&M University
University of Maryland
Santa Clara University
Technische Universität Darmstadt