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APA
J. ANGEL CID, A. CABADA, L. SANCHEZ, (2007). Positivity and lower and upper solutions for fourth order boundary value problems. NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 67, 1599-1612. ISSN 0362-546X. eISSN .
IEEE
J. ANGEL CID, A. CABADA, L. SANCHEZ, "Positivity and lower and upper solutions for fourth order boundary value problems" in NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, vol. 67, pp. 1599-1612, 2007.
BIBTEX
@article{22047,
author = {J. ANGEL CID and A. CABADA and L. SANCHEZ},
title = {Positivity and lower and upper solutions for fourth order boundary value problems},
journal = {NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS},
year = 2007,
pages = {1599-1612},
volume = 67
}