@article {Wu:2020mxj,
	title = {Boundary criticality of topological quantum phase transitions in two-dimensional systems},
	journal = {Phys. Rev. B},
	volume = {101},
	year = {2020},
	pages = {174406},
	doi = {10.1103/PhysRevB.101.174406},
	author = {Wu, Xiao-Chuan and Xu, Yichen and Geng, Hao and Jian, Chao-Ming and Xu, Cenke}
}
