@book { WorldTrendsinEnvironmentalEducation,
    title = "World Trends in Environmental Education",
    author = "Ulisses Miranda {Azeiteiro} and Fernando J. {Gonçalves} and Walter {Leal Filho}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1144010"
}