@misc{indiciae05b6269ac91d, title = {Using census data to test the critical-period hypothesis for second-language acquisition.}, author = {Gillian Stevens}, year = {2004}, doi = {10.1111/j.0956-7976.2004.01503012.x}, url = {https://pubmed.ncbi.nlm.nih.gov/15016295/}, note = {Source identifier: 15016295} }