@article{10_4064_am30_4_7,
     author = {R. P. Agarwal and Donal O'Regan},
     title = {Weakly sequentially continuous maps and
  existence principles for elliptic equations},
     journal = {Applicationes Mathematicae},
     pages = {451--460},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {2003},
     doi = {10.4064/am30-4-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am30-4-7/}
}