S. Muni, Vijayakumar, Kallu Vetty Muhammed Rafeek, Gudala Janardhana Reddy, and Deena Sunil Sharanappa. “Signed Networks With Laplacian Feedback: Observability and Minimal Sensor Problem”. Bulletin of the Polish Academy of Sciences Technical Sciences 73, no. 4 (June 30, 2025): e154061. Accessed August 16, 2026. https://wydawnictwo.pan.pl/index.php/bpasts/article/view/975.