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  Dan N. DOBRESCU - Computer stamps catalog, AXA 2011   Stamps and new technologies  
  Wobbe VEGTER - Cyber Philately   Johann VANDENHAUTE - Computers  
  Vito GALGANO - Computer related stamps - a topical collection   Dan N. DOBRESCU - Computer stamps (catalog)  
  Mathematics and computation I - IV   Dan N. DOBRESCU - Communication through a computer  
  Michel LANDRIEU - Informatique et télécommunications   Fédération des Equipes BULL  
  Letter mail mechanization   Postage ATM stamps  
  J. CURA - Filatelica e Informatica   Delcampe philately computer topics - on line auctions