Reduction of computational complexity in the butterfly search technique [ultrasonic blood flow imaging]. - Sheikh Kaisar Alam; Kevin J. Parker (IEEE Trans. Biomed. Eng., 1996)

Theory and application of sonoelasticity imaging. - L. Gao; Kevin J. Parker; Sheikh Kaisar Alam; Deborah J. Rubens; Robert M. Lerner (Int. J. Imaging Syst. Technol., 1997)