@article{NUMA_1993__64_2_133717,
     author = {P.J. McKenna and Y.S. Choi and M. Romano},
     title = {A mountain pass method for the numerical solution of semilinear wave equations.},
     journal = {Numerische Mathematik},
     pages = {487--510},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1993},
     zbl = {0796.65109},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1993__64_2_133717/}
}