Klockmann, Heidi Elizabeth; Garshol, Lenka (2024). Agreement Errors in Norwegian L1, English L2 Quantity Pseudopartitives. Revue roumaine de linguistique. ISSN: 0035-3957. 69 (3-4). s 307 - 325. doi:10.59277/RRL.2024.3-4.17.
Klockmann, Heidi Elizabeth (2021). Deconstructing base numerals English and Polish 10, 100, and 1000. Formal approaches to number in Slavic and beyond. ISBN: 978-3-96110-314-0. Language Science Press.