For citations:

Kugaenko O.M., Torshina E.S., Petrakov V.S., Buzanov O.A., Sakharov S.A. The Effect of High-Temperature Annealing on the Microhardness Anisotropy in Crystals of the Langasite (La₃Ga₅SiO₁₄) Family. Industrial laboratory. Diagnostics of materials. 2015;81(7):34-41. (In Russ.)