Tripathy, Binod Chandra, and Achyutanada Baruah. “New Type of Difference Sequence Spaces of Fuzzy Real Numbers”. Mathematical Modelling and Analysis 14, no. 3 (September 30, 2009): 391-397. Accessed January 6, 2025. https://mla.vgtu.lt/index.php/MMA/article/view/6560.