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1992 Journal Article Laser-Beams with Phase SingularitiesHeckenberg, NR, McDuff, R, Smith, CP, Rubinszteindunlop, H and Wegener, MJ (1992). Laser-Beams with Phase Singularities. Optical and Quantum Electronics, 24 (9), S951-S962. doi: 10.1007/BF01588597 |