@article {chen2012methodology,
	title = {A methodology for predicting particle penetration factor through cracks of windows and doors for actual engineering application},
	journal = {Building and Environment},
	volume = {47},
	year = {2012},
	pages = {339{\textendash}348},
	publisher = {Pergamon},
	author = {Chen, Chun and Zhao, Bin and Zhou, Wanting and Jiang, Xinyi and Tan, Zhongchao}
}