@book { BecomingaChangemaker, title = "Becoming a Changemaker", subtitle = "Ein handlungsorientierter Leitfaden für positiven Wandel auf jeder Ebene", author = "Alex {Budak}", year = "2025", publisher = "Vahlen", address = "München, Deutschland", url = "https://vahlen.openpublishing.com/document/1571861" }