K. G. Bachmann Grenko, J. A., Reynolds, C. L., Schlesser, R., Bachmann, K., Rietmeier, Z., Davis, R. F., & Sitar, Z. (2004). Selective etching of GaN from AlGaN/GaN and AlN/GaN structures. MRS Internet Journal of Nitride Semiconductor Research, 9(5). https://doi.org/10.1557/s1092578300000405 Bachmann, K. J., Sukidi, N., Hopfner, C., Harris, C., Dietz, N., Tran, H. T., … Banks, H. T. (1998). Real-time monitoring of steady-state pulsed chemical beam epitaxy by p-polarized reflectance. JOURNAL OF CRYSTAL GROWTH, 183(3), 323–337. https://doi.org/10.1016/s0022-0248(97)00410-7