Industrial communication networks - Fieldbus specifications - Part 4-19: Data-link layer protocol specification - Type 19 elements (IEC 61158-4-19:2019); English version EN IEC 61158-4-19:2019, only on CD-ROM
German title
Industrielle Kommunikationsnetze - Feldbusse - Teil 4-19: Protokollspezifikation des Data-Link Layer (Sicherungsschicht) - Typ 19-Elemente (IEC 61158-4-19:2019); Englische Fassung EN IEC 61158-4-19:2019, nur auf CD-ROM
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