Folwaczny, M., Thiele, L., Mehl, A., & Hickel, R. (2001). The effect of working tip angulation on root substance removal using Er: YAG laser radiation: an in vitro study. Journal of clinical periodontology, 28(3), 220-226. https://doi.org/10.1034/j.1600-051x.2001.028003220.x
Chicago Style (17th ed.) CitationFolwaczny, Matthias, Lidka Thiele, Albert Mehl, and Reinhard Hickel. "The Effect of Working Tip Angulation on Root Substance Removal Using Er: YAG Laser Radiation: An in Vitro Study." Journal of Clinical Periodontology 28, no. 3 (2001): 220-226. https://doi.org/10.1034/j.1600-051x.2001.028003220.x.
MLA (9th ed.) CitationFolwaczny, Matthias, et al. "The Effect of Working Tip Angulation on Root Substance Removal Using Er: YAG Laser Radiation: An in Vitro Study." Journal of Clinical Periodontology, vol. 28, no. 3, 2001, pp. 220-226, https://doi.org/10.1034/j.1600-051x.2001.028003220.x.