J.  Tilli, Fantoni, G., Currenti, S., and Razionale, A. V., ?Object shaping with a sonotrode?, in  25th symposium on Free Form Fabrication, 2014. 

J.  Tilli, Fantoni, G., and Currenti, S., ?Underwater drilling of foam-like materials and wax using ultrasound technology?, in International Conference On Innovative Design And Manufacturing, Montreal, Quebec, Canada, August 13-15, 2014.