Liu, Jing, et al. “A Roughness Study of Ytterbium-Doped Potassium Yttrium Tungstate (YB: KYW) Thin-Disk Femtosecond Ablated Dentin”. Journal of Lasers in Medical Sciences, vol. 5, no. 1, Dec. 2013, pp. 32-38, https://journals.sbmu.ac.ir/jlms/article/view/4729.