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Degenerate Bogdanov–Takens bifurcations in a bulk viscous cosmology

Asmaa Abdel Azim, Adel Awad and E. I. Lashin

Eur. Phys. J. C, 80 9 (2020) 868

DOI: https://doi.org/10.1140/epjc/s10052-020-8384-x

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