@article{article515527d4, title = {Real-time holographic interferometry using photorefractive sillenite crystals with phase-stepping technique}, author = {Gesualdi, M R R and Muramatsu, Mikiya}, year = {2006}, doi = {10.1016/j.optlaseng.2005.03.006}, journal = {Optics and Lasers in Engineering} }