المؤلفون: Yu Wang, Lei Liu

المصدر: China Finance Review International, 2016, Vol. 6, Issue 2, pp. 150-176.

الوصول الحر: http://www.emeraldinsight.com/doi/10.1108/CFRI-11-2014-0095Test

المؤلفون: Lei Pang, Lei Liu, Yong Kang, Pengfei Lv

المصدر: Engineering Computations, 2015, Vol. 32, Issue 8, pp. 2383-2390.

الوصول الحر: http://www.emeraldinsight.com/doi/10.1108/EC-01-2015-0006Test

المؤلفون: Lei, Liu, Hongwei, Sun

المصدر: Industrial Lubrication and Tribology, 2011, Vol. 63, Issue 6, pp. 453-455.

الوصول الحر: http://www.emeraldinsight.com/doi/10.1108/00368791111169043Test