Matute Villegas, Mario Carlos, et al. “Biometric-Gated SD-VPN Gateway for Secure Remote PLC (Siemens S7-1200) Control With Microsegmentation and Conversational Monitoring”. LACCEI, vol. 1, no. 14, July 2026, https://doi.org/10.18687/LACCEI2026.1.1.2572.