Mohanta SK, Kar R. Some new coincidence point results for single-valued and multi-valued mappings in $b$-metric spaces via digraphs. Mat. Stud. [Internet]. 2020Mar.18 [cited 2024Apr.25];53(1):69-4. Available from: http://matstud.org.ua/ojs/index.php/matstud/article/view/16