Existence of solutions to uncertain differential equations of nonlocal type via an extended Krasnosel’skii fixed point theoremAlireza Khastan, Juan J. Nieto and Rosana Rodríguez-LópezEur. Phys. J. Plus, 137 12 (2022) 1308DOI: https://doi.org/10.1140/epjp/s13360-022-03447-3