1.
M. Kuneva, S. Tonchev and K. Christova. Phase Composition and Stress in Proton Exchanged Waveguide Layers in LiNbO3 and LiTaO3. NUPSR-V5 [Internet]. 2021 May 26 [cited 2026 Jun. 3];:140-51. Available from: https://stm.bookpi.org/NUPSR-V5/article/view/1404