Magnetic oxide EP-cores and associated parts for use in inductors and transformers - Dimensions (IEC 61596:1995); German version EN 61596:1997— 11 стр.
Ferrite cores - Dimensions - Part 5: EP-cores and associated parts for use in inductors and transformers (IEC 62317-5:2015); German version EN 62317-5:2015— 12 стр.