Text and office systems - Keyboards - Part 11: German keyboard for data and text processing as well as for typewriters; principles governing the allocation of characters or functions to keys and the placement of their symbols on the keys— 5 стр.
Text and office systems - Keyboards - Part 6: German keyboard for data and text processing as well as for typewriters; key arrangement and allocation of functions— 18 стр.
Text and office systems - Keyboards - Part 10: German keyboard for data and text processing as well as for typewriters; arrangement of key positions and key distances— 8 стр.
Text and office systems - Keyboards - Part 2: German keyboard for data and text processing; key arrangement and allocation of characters to keys— 19 стр.