Li, L. A., S. H. Cheng, H. D. Li, Q. Yu, J. W. Liu, and X. Y. Lv. 2010. “Effect of Nitrogen on Deposition and Field Emission Properties of Boron-Doped Micro- and Nano-Crystalline Diamond Films”. Nano-Micro Letters 2 (3):154-59. https://doi.org/10.1007/BF03353634.