Dehghan Nezhad, Akbar, Ahmadreza Forough, Nikola Mirkov, and Stojan Radenović. 2021. “A New Version of the Results of Un–hypermetric Spaces”. Vojnotehnički Glasnik Military Technical Courier 69 (3): 562-77. https://doi.org/10.5937/vojtehg69-32197.