1. Naked footmarks—a preliminary study of identification factors;Qamra;Forensic Sci. Int.,1980
2. Forensic Science in Criminal Investigation;Sharma,1990
3. Footprints;Gayer,1904
4. The individuality of human footprints;Robbins;J. Forensic Sci.,1978
5. Use of footprints, especially forefoot prints, from the forensic viewpoint;Winkelmann;Z. Rechtsmed.,1987