%0 Journal Article %T Two-stage clustering and routing problem by using FCM and K-means with Genetic Algorithm %A PEKEL ÖZMEN, E. %A KÜÇÜKDENİZ, T. %J Sigma Journal of Engineering and Natural Sciences %D 2024 %V 42 %P 1030-1038 %R 10.14744/sigma.2023.00096