1.
Janek J, Pisarska J, Pisarski W. Rare earth doped lead-free germanate glasses for modern photonics. Photonics Lett. Pol. [Internet]. 2014 Jun. 30 [cited 2024 Apr. 13];6(2):pp. 71-73. Available from: https://www.photonics.pl/PLP/index.php/letters/article/view/6-25