John Zheng Wang, RETRACTED: Calculating the Number of Rigling on Highly Deformed Bullets: A Digital Measurement and Mathematical Formula Approach, Journal of Advanced Forensic Sciences, Volume 1, Issue 1, 2018, Pages 1-14, ISSN 2692-5915, https://doi.org/10.14302/issn.2692-5915.jafs-18-2420.
(https://ijn-medicalarticles.info/advanced-forensic-sciences/article/retracted-calculating-the-number-of-rigling-on-highly-deformed-bullets-a-digital-measurement-and-mathematical-formula-approach-897)
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