@article{{MaP}{}, author = {Oanh, L., Hanh, P., Can, D., Hoang, L.}, title = { Classific ation of natural tourmalines using near- infrared absorption spectroscopy}, journal = {VNU Journal of Science: Mathematics - Physics}, volume = {26}, number = {4}, year = {2010}, url = {https://js.vnu.edu.vn/MaP/article/view/2733} }