@article{BMMS_2010_33_2_a5,
     author = {Fazhan Geng and Minggen Cui},
     title = {Analytical {Approximation} to {Solutions} of {Singularly} {Perturbed} {Boundary} {Value} {Problems}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2010},
     volume = {33},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2010_33_2_a5/}
}