“Brehmer, B. & Treffers-Daller, J. (2020) Lost in Transmission: The Role of Attrition and Input in Heritage Language Development. Amsterdam Philadelphia: John Benjamins Publishing Company. 276 Pages. ISBN: 978-90-272-0539-1 (HB) 203”. Semas, vol. 3, no. 5, June 2023, pp. 203-8, https://semas.uaq.mx/index.php/ojs/article/view/96.