Sequence Length is a Domain: Length-based Overfitting in Transformer Models. In: Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing (EMNLP), pp. 8246-8257, Association for Computational Linguistics, Stroudsburg, PA, USA, ISBN 978-1-955917-09-4 (pdf, local PDF, local PDF, local PDF, bibtex)