- Optics Letters, Vol. 38, Issue 3, pp. 380-382 (February 2013)
- Yi Hu, Ming Li, Domenico Bongiovanni, Matteo Clerici, Jianping Yao, Zhigang Chen, José Azaña, Roberto Morandotti
- Optics Express, Vol. 20, Issue 20, pp. 22636-22648 (September 2012)
- Nektarios Koukourakis, Volker Jaedicke, Adamou Adinda-Ougba, Sebastian Goebel, Helge Wiethoff, Henning Höpfner, Nils C. Gerhardt, Martin R. Hofmann