@book { InformalizationandHybridizationofSpeechPractices, title = "Informalization and Hybridization of Speech Practices", author = "Amei {Koll-Stobbe}", year = "2019", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-05414-9", url = "https://www.peterlang.com/document/1049058" }