Journal of Mathematical Analysis and ApplicationsVolume 141, Issue 2, 1 August 1989, Pages 559-567Focal boundary value problems for nonlinear difference equations, IAuthor links open overlay panelJohnny HendersonShow moreShareCitehttps://doi.org/10.1016/0022-247X(89)90197-2Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 1989 Published by Elsevier Inc.