The data for the M113 model implemented in these JSON files was obtained from the following publicly available sources:

- M. Wallin, A.K. Aboubakr, P. Jayakumar, M.D. Letherwood, D.J. Gorsich, A. Hamed, and A.A. Shabana, "A comparative study of joint formulations: Application to multibody system tracked vehicles," Nonlinear Dynamics 74(3), 2013.
- M. Wallin, A.K. Aboubakr, P. Jayakumar, M.D. Letherwood, A. Hamed, and A.A. Shabana, "Chain Dynamic Formulations for Multibody System Tracked Vehicles" (Preprint), University of Illinois at Chicago, 2013. 
www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA566761 ,
www.dtic.mil/dtic/tr/fulltext/u2/a566266.pdf
- Manuel F.R. Afonso, "Ride Dynamic Analysis of Tracked Vehicles," Master Thesis, Concordia University, Montreal, Quebec, Canada, 1989.
- R.H. Keays, "Analysis of Armoured-Vehicle Track Loads and Stresses, with Considerations on Alternative Track Materials," MRL General Document, MRL-GD-0022, 1988.
http://www.dtic.mil/dtic/tr/fulltext/u2/a219397.pdf
- Peter Blume and Clemens Niesner, "M113 in der Bundeswehr - Teil 1 (M113 in the Modern German Army - Part 1)," Publication No. 5032, Verlag Jochen Vollert - Tankograd Publishing, Erlangen, Germany, 2011.
https://www.tankograd.com/cms/website.php?id=/en/M-113-in-der-Bundeswehr-Teil-1.htm

Create REAMDE.md file for M113 data.
Create REAMDE.md file for M113 data.

This file lists the various public sources for the M113 vehicle data