@article{202103.0540,
	doi = {10.20944/preprints202103.0540.v1},
	url = {https://doi.org/10.20944/preprints202103.0540.v1},
	year = 2021,
	month = {March},
	publisher = {Preprints},
	author = {ZhaoHong Han and Gang Bao},
	title = {Is There a Critical Period for Second Language Acquisition? A theoretical Social Physics Approach},
	journal = {Preprints}
}