- Inductance Calculations, Electromagnetic Compatibility Laboratory, Missouri University of Science and Technology
- Inductance Calculator, Nicola Asuni, Technick.net
- Inductance Calculator, Clemson University Vehicular Electronics Laboratory
- One-turn loop inductance calculation, Claudio Girardi a.k.a. IN3OTD
- Staying in the Loop. David Gibson, Milton K. Mills, Doug Rekenthaler Jr. Public Roads. Vol. 62 No. 2 (September/October 1998).
- Traffic Detector Handbook, Third Edition. US Department of Transportation. Publication No. FHWA-HRT-06-108 (October 2006).
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