@article{NUMA_1972__20_132193,
     author = {Ren\'e van Dooren},
     title = {Numerical {Computation} of {Forced} {Oscillations} in {Coupled} {Duffing} {Equations.}},
     journal = {Numerische Mathematik},
     pages = {300--311},
     publisher = {mathdoc},
     volume = {20},
     year = {1972},
     zbl = {0266.65064},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1972__20_132193/}
}