id	domain	url
fumecheng-5899	doi.org	https://doi.org/10.22190/fume191127014j
fumecheng-5899	pjm.math.berkeley.edu	http://pjm.math.berkeley.edu/jomms/2009/4-10/p03.xhtml
fumecheng-5899	www.sciencedirect.com	http://www.sciencedirect.com/science?_ob=mimg&_imagekey=b6vjs-4ycwnn7-1-5x&_cdi=6102&_user=1793222&_pii=s0020768310000478&_orig=search&_coverdate=05%2f15%2f2010&_sk=999529989&view=c&wchp=dglbvtz-zskwb&md5=990c61b2ee24db395dc537dc4e637cc4&ie=/sdarticle.pdf