TY  - RPRT
TI  - Using census data to test the critical-period hypothesis for second-language acquisition.
AU  - Gillian Stevens
PY  - 2004
DO  - 10.1111/j.0956-7976.2004.01503012.x
UR  - https://pubmed.ncbi.nlm.nih.gov/15016295/
ID  - 15016295
ER  -