H. Bell
- The Rajpootana (State) Railway. In: Minutes of the Proceedings of the Institution of Civil Engineers, v. 50, n. 1877-4 ( 1877). (1877):
- Estimating vehicle speed using single inductive loop detectors. In: Proceedings of the Institution of Civil Engineers - Transport, v. 147, n. 1 (Februar 2001). (2001):