• Green hydrogen use in Estonian transport and energy sectors raises concernsKlementi, Joakimnews.err.ee2023 https://news.err.ee/1609196707/green-hydrogen-use-in-estonian-transport-and-energy-sectors-raises-concerns
• Greenhouse gas emission reduction perspectives in the Baltic States in frames of EU energy and climate policyRoos, Inge; Soosaar, Sulev; Volkova, Anna; Streimikene, DaliaRenewable & sustainable energy reviews2012 / p. 2133-2146 : ill https://www.sciencedirect.com/science/article/pii/S1364032112000147