1. Assessing first language vulnerability to attrition
2. Ammerlaan, T., Hulsen, M., Strating, H. & Yagmur, K. (2001). Language maintenance, shift, and loss: Work in progress. In T. Ammerlaan, M. Hulsen, H. Strating, & K. Yagmur (Eds.), Sociolinguistic and psycholinguistic perspectives on maintenance and loss in minority languages (pp. 1 - 13). Münster: Waxmann.
3. Andersen, R.W. (1982). Determining the linguistic attributes of language attrition. In R. D. Lambert & B. F. Freed (Eds.), The loss of language skills (pp. 83 - 118). Rowley, MA: Newbury House.
4. Remembering can cause forgetting: Retrieval dynamics in long-term memory.