(NsTROITELXNYE MATERIALY (B:s (NlABORATORNYE ZANQTIQ (B/s - (N~EHOW(B, (NaNATOLIJ pETROWI^s ((NkIEW (B:s (NwI]A [K(B,s, 1974)
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Keywords: (NsTROJMATERIALYs