@article{c1611cb5b7fa4bba91b23413b299cee0,
title = "Geometric numerical integration applied to the elastic pendulum at higher-order resonance",
keywords = "Mathematics, Wiskunde en computerwetenschappen, Landbouwwetenschappen, Wiskunde: algemeen",
author = "J.M. Tuwankotta and Quispel, {G. R. W.}",
year = "2003",
language = "Undefined/Unknown",
volume = "154",
pages = "229--242",
journal = "Journal of Computational and Applied Mathematics",
issn = "0377-0427",
publisher = "Elsevier BV",
number = "1",
}