1. Variation across speech and writing;Biber,1988
2. Register, genre, and style;Biber,2019
3. Register variation online;Biber,2018
4. Reconceptualizing register in a continuous situational space;Biber;Corpus Linguistics and Linguistic Theory,2020
5. Describing registers in a continuous situational space: Case studies from the web and natural conversation;Biber,2021