@article{KyriakopoulosGrossmannWolfBortolussi_2018, title={Lumping of degree-based mean-field and pair-approximation equations for multistate contact processes}, author={Kyriakopoulos, Charalampos and Grossmann, Gerrit and Wolf, Verena and Bortolussi, Luca}, issn={2470-0045}, doi={http://dx.doi.org/10.22028/D291-31042}, series={1}, volume={97}, publisher={APS}, journal={Physical review}, year={2018} }