@article{1103055718,
author = {Agarwal, Ravi P. and O'Regan, Donal},
title = {Second and higher order boundary value problems of nonsingular type},
journal = {Bull. Belg. Math. Soc. Simon Stevin},
volume = {7},
number = {4},
year = {2000},
pages = { 43-52},
language = {en},
url = {http://dml.mathdoc.fr/item/1103055718}
}
Agarwal, Ravi P.; O'Regan, Donal. Second and higher order boundary value problems of nonsingular type. Bull. Belg. Math. Soc. Simon Stevin, Tome 7 (2000) no. 4, pp. 43-52. http://gdmltest.u-ga.fr/item/1103055718/