Industrial communication networks - Fieldbus specifications - Part 6-10: Application layer protocol specification - Type 10 elements (IEC 61158-6-10:2014); English version EN 61158-6-10:2014, only on CD-ROM— 727 стр.
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures -- Part 1: General and guidance ( IEC 61300-1:2016) (english version)