J. Kwiatkowski, J. Swiderski, W. Zendzian, J. K. Jabczynski, L. Gorajek, and M. Kaskow, “Resonantly pumped, Q-switched Ho:YLF laser with output energy of 5 mJ at 1 kHz”, Photonics Lett. Pol., vol. 6, no. 1, pp. pp. 5–7, Mar. 2014.