For citations:

Tretiakova M.V., Lashchenova E.A., Kochergina E.V. Expansion and optimization of the nomenclature of certified reference materials for spectral analysis of cast irons. Industrial laboratory. Diagnostics of materials. 2023;89(2(II)):49-52. (In Russ.) https://doi.org/10.26896/1028-6861-2023-89-2-II-49-52