A silicon bidirectional flow sensor for measuring respiratory flow. - Michel J. A. M. van Putten; Maurice H. P. M. van Putten; Anton F. P. van Putten; Jan C. Pompe; Hajo A. Bruining (IEEE Trans. Biomed. Eng., 1997)

A fast, digitally controlled flow proportional gas injection system for studies in lung function. - Karansingh Joy Krishnamoertisingh Kanhai; Peter J. Caspers; Ewald G. J. Reinders; Jan C. Pompe; Hajo A. Bruining; Gerwin J. Puppels (IEEE Trans. Biomed. Eng., 2003)

Design and validation of an analyser to measure sulphur hexafluoride gas during respiration. - Karansingh Joy Krishnamoertisingh Kanhai; F. Eijskoot; Ewald G. J. Reinders; Hajo A. Bruining; Gerwin J. Puppels (Medical Biol. Eng. Comput., 2005)