@book { InternationalPerspectivesinEnvironmentalEducation,
    title = "International Perspectives in Environmental Education",
    author = "Walter {Leal Filho} and Michael {Littledyke}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1144012"
}