Eddington, D.E. 2019. Variation in interrogative adverbials: ’cuán’, ’qué tan’, ’cómo de’,’lo que’ and ’lo’+adj./adv.+’que’. Borealis – An International Journal of Hispanic Linguistics. 8, 2 (Nov. 2019), 321–342. DOI:https://doi.org/10.7557/1.8.2.4909.