Langley, C., Langley, C., & Hancock, G. (2012). Development of Techniques for Trace Gas Detection in Breath.

Langley, C., Cathryn Langley, and G. Hancock. Development of Techniques for Trace Gas Detection in Breath. 2012.

Langley, C., et al. Development of Techniques for Trace Gas Detection in Breath. 2012.