DUDEN

CD-ROMs and floppy disks containing electronic educational and reference books in the fields of literature, art, mathematics, geography, and history

information books, educational books and reference books in the fields of literature, art, mathematics, geography, and history

electronic transmission of messages for information books, educational books and reference books of all kinds with text and/or sound material and/or picture material

publication of books

providing philological information to book publishers that assists in the development of data processing programs; creating computer programs for educational and reference book publishers; counseling and advising in the field of linguistics, especially as regards orthography, grammar, art of composition and punctuation, and copyright management