Spectroscopy and efficient laser operation of Er,Yb:GdAl3(BO3)4 crystal at 1.5-1.6 pm - Gorbachenya, K. N.; Kisel, V. E.; Yasukevich, A. S.; Maltsev, V. V.; Leonyuk, N. I.; Kuleshov, N. V. (БНТУ, 2013)