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"A semi-algorithm to find elementary first order invariants of rational ..."
J. Avellar et al. (2007)
- J. Avellar, L. G. S. Duarte, S. E. S. Duarte, L. A. C. P. da Mota:
A semi-algorithm to find elementary first order invariants of rational second order ordinary differential equations. Appl. Math. Comput. 184(1): 2-11 (2007)
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