@article{NUMA_1975__25_132378,
     author = {H.L. Loeb and R.B. Barrar},
     title = {Multiple {Zeros} and {Applications} to {Optimal} {Linear} {Functionals.}},
     journal = {Numerische Mathematik},
     pages = {251--262},
     publisher = {mathdoc},
     volume = {25},
     year = {1975},
     zbl = {0307.65031},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1975__25_132378/}
}