For citations:
Stupakova G.A., Ignatyeva E.E., Dengina S.A., Shchipletsova T.I., Mitrofanov D.K., Vetrova E.I., Kholiaeva O.V. Study of long-term stability of reference materials of soils. Measurement Standards. Reference Materials. 2021;17(4):47-63. (In Russ.) https://doi.org/10.20915/2687-0886-2021-17-4-47-63

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