Gajendra Shekhawat and Vinayak P. Dravid "Seeing the Invisible: Scanning Near-Field Ultrasound Holography (SNFUH) for High Resolution Buried Imaging and Pattern Recognition" Microscopy and Microanalysis 2007
Gajendra S. Shekhawat, Shraddha Avasthy, Arvind K. Srivastava, Soo-Hyun Tark, and Vinayak P. Dravid "Probing Buried Defects in Extreme Ultraviolet Multilayer Blanks Using Ultrasound Holography" IEEE transactions 2010