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LevelDesign.nu - Intervjuer - MEEEEDIC. Archived from the original on 2002-08-22. "Jo Bieg: The guys at cs.net introduced the new de (defusion) scenarios and Cliffe asked me to change it so they'd have one map featuring that scenario in the next cs-release."
"Steam Update". CS-Nation. February 26, 2002. Archived from the original on June 5, 2002. Retrieved February 25, 2025.
"CS 1.4 Nears". CS-Nation. January 5, 2002. Archived from the original on June 5, 2002. Retrieved February 25, 2025.
Gheorghe, Silviu (October 9, 2002). "Valve Software Intervew". Computer Games Romania. Archived from the original on November 11, 2002. Retrieved March 4, 2025.