- Optics Letters, Vol. 38, Issue 6, pp. 980-982 (March 2013)
- R. C. Botha, H. J. Strauss, C. Bollig, W. Koen, O. Collett, N. V. Kuleshov, M. J. D. Esser, W. L. Combrinck, H. M. von Bergmann
- Optics Express, Vol. 21, Issue 3, pp. 3516-3522 (February 2013)
- Yongguang Zhao, Xianlei Li, Miaomiao Xu, Haohai Yu, Yongzhong Wu, Zhengping Wang, Xiaopeng Hao, Xinguang Xu