S. Muni V, Rafeek KVM, Reddy GJ, Sharanappa DS. Signed networks with Laplacian feedback: Observability and minimal sensor problem. Bull. Pol. Acad. Sci. Tech. Sci. [Internet]. 2025 Aug. 31 [cited 2026 May 28];73(4):e154061. Available from: https://wydawnictwo.pan.pl/index.php/bpasts/article/view/975