Agarwal, R. P., & O'Regan, D. Nonlinear analysis and applications: To V. Lakshmikantham on his 80th birthday. Kluwer Academic Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Agarwal, Ravi P., και Donal O'Regan. Nonlinear Analysis and Applications: To V. Lakshmikantham on His 80th Birthday. Dordrecht: Kluwer Academic Publishers.
Παραπομπή σε μορφή MLA (8th εκδ.)Agarwal, Ravi P., και Donal O'Regan. Nonlinear Analysis and Applications: To V. Lakshmikantham on His 80th Birthday. Kluwer Academic Publishers.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.