Denić, Milica, and Jakub Szymanik. “Recursive Numeral Systems Optimize the Trade-off Between Lexicon Size and Average Morphosyntactic Complexity”. Proceedings of the Amsterdam Colloquium (December 1, 2022): 351–359. Accessed December 5, 2025. https://platform.openjournals.nl/PAC/article/view/21743.