1. S. Barma, Ta-Wen Kuan, Jaw-Shyang Wu, Shih-Pang Tseng, Jhing-Fa Wang Proceedings of International Conference on Orange Technologies (ICOT, 2013), pp. 201–204.
2. A. Sh. Bureev, D. S. Zhdanov, I. Yu. Zemlyakov, M. V. Svetlik Proceedings of IOP Conf. Series: Materials Science and Engineering (2014), p. 66
3. Comparative Assessment of 24-hour Fetal Monitoring Methods Based on Cardiac Rhythm
4. Time-frequency analysis of the first heart sound. Part 1: Simulation and analysis
5. J. Chen, K. Phua, Y. Song, and L. Shue Proceedings of IEEE International Conference on Multimedia and Expo, (2006), pp. 1937–1940.