BHOWMIK, B.; NAG CHOWDHURY, S. Prograph Based Analysis of Single Source Shortest Path Problem with Few Distinct Positive Lengths. Engineering, Technology & Applied Science Research, Greece, v. 1, n. 4, p. 90–97, 2011. DOI: 10.48084/etasr.41. Disponível em: https://etasr.com/index.php/ETASR/article/view/41. Acesso em: 18 jul. 2024.