1. webpage of the International Society for Weigh-in-Motion, http://is-wim.org/index.php?nm=2&nsm=1&lg=en.
2. Automatic instruments for weighing road vehicles in motion and measuring axle loads Part 1: Metrological and technical requirements – Tests,2006
3. Evaluation of measurement data — Guide to the expression of uncertainty in measurement,2008
4. Cost 323 weigh-in-motion of road vehicles;Jacob,1999
5. Assessment of the accuracy and classification of weigh-in-motion systems, Part I - Statistical Framework;Jacob;Int. J. Veh. Des. Heavy Veh. Sys.,2000