Various works which are, to my knowledge, no longer copyrighted

In English:

* Wearmouth - Assembly listings for the Sinclair ZX80, ZX81 & ZX82 (Spectrum)

* MODEM.ASM - original source code, Ward Christensen, October 10, 1977

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In het Nederlands:

Honig's Maizena albums - Albums 1-3, uitgegeven 1910-1914