@article{NUMA_1987__55_4_133367,
     author = {Manabu Sakai and Riaz A. Usmani},
     title = {A {Class} of {Simple} {Exponential} {B-Splines} and {Their} {Application} to {Numerical} {Solution} to {Singular} {Perturbation} {Problems.}},
     journal = {Numerische Mathematik},
     pages = {493--500},
     publisher = {mathdoc},
     volume = {55},
     number = {4},
     year = {1987},
     zbl = {0676.65088},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1987__55_4_133367/}
}