1. See for example IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 1987. Special Issue on Acoustic Sensors, 34(2).
2. Ballantine, D.S., Jr. and H. Wohltjen . 1989. "Elastic Properties of Thin Polymer Films Investigated with Surface Acoustic Wave Devices", in Chemical Sensors and Microinstrumentation, R. W. Murry , ed. Washington, DC: American Chemical Society, pp. 222-236.