A. Takio Kitagawa, Geisler, R. Wegner, Nogueira, K. Thayenne P., and Rocha, E., ?The Influence Of Solar Activity On High-Frequency Communications: A Systemic Risk To Global Communication?, HamSCI. HamSCI, Newington, CT, 2026.

A. Takio Kitagawa, Maffezzolli, A. Carolini, de Oliveira, A. Carolina H., and Brandl, E., ?Investigation of Electromagnetic Wave Propagation in CB Radio with Elementary Students:  A 'Super Bowl' Mystery?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.