Articles from other sources

These articles orginates from other sources, and are not my property what so ever.
I do not know if I may publish them here, if not, please let me know and I'll gladly remove them.
- although I'd appreciate if I may keep them.

Computer Recreations 1, by A.K. Dewdney(Scientific American)
Computer Recreations 2, by A.K. Dewdney(Scientific American)
Computer Recreations 3, by A.K. Dewdney (Scientific American)
Computer Recreations 4, by A.K. Dewdney (Scientific American)