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APA Citation
Byszewski, L., & Papageorgiou, N. S. (1999). an application of a noncompactness technique to an investigation of the existence of solutions to a nonlocal multivalued Darboux problem. Journal of applied mathematics and stochastic analysis, 12, 179–190. http://access.bl.uk/ark:/81055/vdc_100122211807.0x000034