EN 61158-3-1:2008 Industrial communication networks - Fieldbus specifications - Part 3-1: Data-link layer service definition - Type 1 elements [: CENELEC EN 61158-3]
2014EN 61158-3-1:2014 Industrial communication networks - Fieldbus specifications - Part 3-1: Data-link layer service definition - Type 1 elements
2008EN 61158-3-1:2008 Industrial communication networks - Fieldbus specifications - Part 3-1: Data-link layer service definition - Type 1 elements [: CENELEC EN 61158-3]