@book { MalariainSdwestAfrikaDeutscheKolonialmedizin18841915, title = "Malaria in Südwest-Afrika Deutsche Kolonialmedizin 1884–1915", author = "Jan {Esse}", year = "2022", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/b20085", url = "https://www.peterlang.com/document/1292344" }