1. The examination of disc and pin tumbler locks for tool marks made by lock picks;Plumtree;J Forensic Sci,1975
2. Paholke AR All too often things are not what they appear to be 1970 10 30
3. Paholke AR Locksmith plus police equal public security 1971 32 2 9 15
4. Paholke AR Microscopic examination distinguishes between lock pick marks and marks made by keys 1973 18 4 8 9
5. Datagram. Mul-T-lock: design and security 2009 39 http://www.lockpickingforensics.com/articles/mul_t_lock.pdf