@article{JRAM_1975__272_151517,
     author = {Richard B. Lakein},
     title = {A continued fraction proof of {Ford's} theorem on complex rational approximations.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--13},
     publisher = {mathdoc},
     volume = {272},
     year = {1975},
     zbl = {0298.10020},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1975__272_151517/}
}