@article{NUMA_1979__33_132624,
     author = {B.C. Carlson},
     title = {Computing {Elliptic} {Integrals} by {Duplication.}},
     journal = {Numerische Mathematik},
     pages = {1--16},
     publisher = {mathdoc},
     volume = {33},
     year = {1979},
     zbl = {0438.65029},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1979__33_132624/}
}