Yasar, S. “Fourier Transform Infrared Spectroscopic Estimation of Residual Lignin Content in Wood Holocellulose (Pinus Brutia Ten.) Using Artificial Neural Network Modelling”. Asian Journal of Chemistry, vol. 22, no. 4, Mar. 2010, pp. 2853-60, https://asianpubs.org/index.php/ajchem/article/view/11487.