@article{NUMA_1972__20_132206,
     author = {Tohru Morita and Tsuyoshi Horiguchi},
     title = {Convergence of the {Arithmetic-Geometric} {Mean} {Procedure} for the {Complex} {Variables} and the {Calculation} of the {Complete} {Elliptic} {Integrals} with {Complex} {Modulus.}},
     journal = {Numerische Mathematik},
     pages = {425--430},
     publisher = {mathdoc},
     volume = {20},
     year = {1972},
     zbl = {0242.65019},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1972__20_132206/}
}