1. “The European Green Deal” [COM(2019) 640, European Commission, 2019]; https://ec.europa.eu/info/sites/info/files/european-green-deal-communication_en.pdf.
2. “European Parliament resolution of 15 January 2020 on the European Green Deal” [2019/2956(RSP), European Parliament, 2020]; www.europarl.europa.eu/doceo/document/TA-9-2020-0005_EN.html.
3. “European Green Capital” [European Commission, 2018]; https://ec.europa.eu/environment/europeangreencapital/winning-cities/2020-lisbon/.
4. “Estudo de Impacte Ambiental 2019: Aeroporto do Montijo e respetivas acessibilidades” (Resumo Não Técnico, Profico Ambiente, 2019); https://siaia.apambiente.pt/AIADOC/AIA3280/vol%20i_rnt_eia_am2019726195328.pdf [in Portuguese].
5. J. A. Alves ., Anuário Ornitológico 9, 66 (2012).