January 02, 2017: Publications at the Internet Archive

Atlas for Higher Educational Institutions, Edition B

This information-map collection presents you facts on the German Reich. It bases on an original atlas of 1913. All documents were scanned with 300 dpi, thus they are also suited for the prepress preparation. All reproductions are copyright-free and can be used 100 % royalty-free, for commercial as well as for non-commercial purposes.

GEI digital also offers this text book (title page, complete PDF file top right), the resolution there is 100 dpi.

Would you like to get informed on new reproduced single pages? Then keep up with the News with RSS Feed Readers (introductory article).

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June 27, 2016: Basic Mathematics

Proof of the Irrationality of the Square Root of 2“, extended with exercises with solutions, 12 resp. 15 pages.

English versions: A4, A4-dup­lex, US-Let­ter, US-Let­ter-dup­lex.

German versions: A4, A4-dup­lex, US-Let­ter, US-Let­ter-dup­lex.

June 01, 2016: Modern Operating Systems for Old Computers

Free Software strengthens the individual’s and the nation’s in­de­pen­dence. Its per­ma­nent free avail­a­bil­i­ty and its adapt­a­bil­i­ty sup­port the mass ed­u­ca­tion on practical computing and can turn an old com­put­er in­to an effective production system. Learn more on the essential aspects.


November 19, 2011: New OpenPGP key

OpenPGP key for the first quarter of 2012, related information in the imprint.

January 01, 2011: New OpenPGP key

OpenPGP key for the first quarter of 2011, related information in the imprint.


December 31, 2010

All the best for 2011!

December 24, 2010

Merry Christmas!

December 12, 2010: Reproduction Atlas 1913, part elements publicized

Publication of “Europe Political 1913” and “Europa Physical 1913”, in the Texts section.

November 13, 2010: Reopening Tram Line 2 / Oldtimer

At Freiburg, 13.11.2010: Eröffnung Straßenbahnlinie 2 / Oldtimer.

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