A new type of multivalued contraction in partial Hausdorff metric spaces endowed with a graph
Crossref DOI link: https://doi.org/10.1186/s13660-015-0728-y
Published Online: 2015-06-18
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Ali, Muhammad Usman
Kamran, Tayyab
Khan, Liaqat Ali
License valid from 2015-06-18