@article {7950,
	title = {Multi-Hamiltonian structure of the epidemics model accounting for vaccinations and a suitable test for the accuracy of its numerical solvers},
	journal = {J. Phys. A: Math. Theor.},
	volume = {55},
	year = {2022},
	pages = {225206},
	author = {Fernando Haas and Kr{\"o}ger, Martin and Schlickeiser, Reinhard}
}
