DIN EN 60027-1:2007-09 Letter symbols to be used in electrical technology - Part 1: General (IEC 60027-1:1995 (Reprint) + A1:1997 + A2:2005); German version EN 60027-1:2006 + A2:2007
2007DIN EN 60027-1:2007-09 Letter symbols to be used in electrical technology - Part 1: General (IEC 60027-1:1995 (Reprint) + A1:1997 + A2:2005); German version EN 60027-1:2006 + A2:2007
2007DIN EN 60027-1:2007 Letter symbols to be used in electrical technology - Part 1: General (IEC 60027-1:1995 (Reprint) + A1:1997 + A2:2005); German version EN 60027-1:2006 + A2:2007