For citations:
Osintseva E.V., Medvedevskikh S.V., Kremleva O.N., Studenok V.V., Anfilatova O.V., Baratova N.S. Global trends in the area of reference materials and the concept of the development of state service of reference materials (Part I). Measurement Standards. Reference Materials. 2014;(1):6--26. (In Russ.)
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