Huguenin, J A O Topological defects in moiré fringes with spiral zone plates. [electronic resource] - Journal of the Optical Society of America. A, Optics, image science, and vision Oct 2003 - 1883-9 p. digital Publication Type: Journal Article ISSN: 1084-7529 Standard No.: 10.1364/josaa.20.001883 doi