@article{Wang2013, author = "Gao-Ren Wang and Ting Xie and Yin Huang and Shu-Lin Cong", title = "{(a) The variation of the quantity Δ with the coefficient C4}", year = "2013", month = "9", url = "https://iop.figshare.com/articles/figure/_a_The_variation_of_the_quantity_with_the_coefficient_em_C_em_sub_4_sub_/1012764", doi = "10.6084/m9.figshare.1012764.v1" }