@conference {Krupa2007c,
	title = {Full Motion Tracking in Ultrasound Using Image Speckle Information and Visual Servoing},
	booktitle = {Procedings IEEE International Conference on Robotics and Automation},
	year = {2007},
	month = {10{\textendash}14 April},
	pages = {2458{\textendash}2464},
	doi = {10 1109/ROBOT 2007 363688},
	author = {Alexandre Krupa and Gabor Fichtinger and Gregory D. Hager}
}
