R. Mathu Pritha, A. Amutha. Minimum Tree t-Spanners on Fuzzy Ratio Labelled General Graphs - NP Complete. A Canadian journal of applied mathematics, computer science and statistics [Internet]. 2025 Sep. 18 [cited 2026 May 7];122(2):1110-3. Available from: https://utilitasmathematica.com/index.php/Index/article/view/2823