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J. H. He, Variational approach for nonlinear oscillators, Chaos, Solitons Fractals 34(5) (2007) 1430–1439. Crossref, Web of Science, Google Scholar 22. K. J. Wang and G. D. Wang, Variational principle ...
F. Nian, S. Ren and Z. Dang , The propagation weighted priority immunization strategy based on propagation tree, Chaos Solitons Fractals 99 (2017) 72–78. Crossref, Web of Science, Google Scholar 14. F ...
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