投文章,审稿专家给了一段话,让我补充引用,但是找不到参考文献 The value of C0 indicates the degree of variation of the soil. The higher the value of C0 is the higher degree of variation that is caused by the random part; on the contrary, the variation is mainly caused by the structural part (Peter and Andreas 2015; Stacey et al. 2006)