D. Ahrens (Cisco Systems), "On-Demand Content Control Based on Parental Control Setting", U.S. patent 8,832,725, issued September 9, 2014.
D. Ahrens (Scientific-Atlanta), "Integrating, Deploying and Supporting Applications", Power Summit 2000 Interactive TV Developer Conference (Palo Alto, CA), October 2000.
D. Ahrens (Scientific-Atlanta), "Broadband Services To The Home", Telecommunications and Utility Alliances Conference (Denver, CO), January 1997.
R. Kennedy (Florida Power Corporation), F. Levy and D. Ahrens (Scientific-Atlanta), "2-Way Utility Communications Over A Broadband Network In The USA ", DA/DSM Europe, October 1996.
D. Ahrens (Georgia Power Company) and S.P. Lazarus (Valmet Automation), "Using AM/FM/GIS Data Within A Distribution Automation System", AM/FM International Conference XVII (Denver, CO), March 1994. Presented again at the Valmet Automation Users Group, October 1994. Reprinted in 'Transmission & Distribution' Magazine, October 1994.
D. Ahrens (Georgia Power Company), "Distribution SCADA at Georgia Power Company", Southern Company Operational Relay Conference (St. Simon’s, GA), July 1994.
M. Garnett (Valmet Automation) and D. Ahrens (Georgia Power Company), "AM/FM - SCADA Integration Within The Utility Communication Architecture (UCA) Standard", AM/FM International Conference XVI (Orlando, FL), March 1993. Included in "The Best Papers of AM/FM International", 1993. Referenced in "The Emergence and Convergence of AM/FM/GIS and SCADA Systems", 'SCADA Letter' Magazine, Spring 1994.
D. Ahrens, J.H. Ball, J.D. Bennett and S.N. Bennett (Georgia Power Company), "Georgia Power Company Standardized SCADA Pole-Mount Installation for Distribution Automation Applications", Southeastern Electric Exchange 1993, Excellence in Engineering Award - Distribution Category, February 1993.