"Molecular Diversity Preservation International (MDPI) (Basel)." . . "Electronic journals" . . "Energies" . "Energies"@en . "Energies (Online)" . . . "Subject areas include: energy sources; energy infrastructure; energy applications; energy saving and efficiency; general energy topics."@en . . . . . "Periodicals"@en . "Periodicals" . . . . "Energies open-access journal of related scientific research, technology development and studies in policy and management" . "Energies open-access journal of related scientific research, technology development and studies in policy and management"@en . . . . . . . . . . . . . . . . .