Cabré, P.; Fontich, E.; de la Llave, R. (2003). "The parametrization method for invariant manifolds I: manifolds associated to non-resonant spectral subspaces". Indiana Univ. Math. J. 52: 283–328. doi:10.1512/iumj.2003.52.2245. hdl:2117/876.
Haro, A.; de la Llave, R. (2006). "A parameterisation method for the computation of invariant tori and their whiskers in quasiperiodic maps: Rigorous results". Differ. Equ. 228 (2): 530–579. Bibcode:2006JDE...228..530H. doi:10.1016/j.jde.2005.10.005.
Cabré, P.; Fontich, E.; de la Llave, R. (2003). "The parametrization method for invariant manifolds I: manifolds associated to non-resonant spectral subspaces". Indiana Univ. Math. J. 52: 283–328. doi:10.1512/iumj.2003.52.2245. hdl:2117/876.
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Haro, A.; de la Llave, R. (2006). "A parameterisation method for the computation of invariant tori and their whiskers in quasiperiodic maps: Rigorous results". Differ. Equ. 228 (2): 530–579. Bibcode:2006JDE...228..530H. doi:10.1016/j.jde.2005.10.005.