@article{MMNP_2015_10_3_a11,
     author = {B. E. Okeke and M. R. Roussel},
     title = {An {Invariant-Manifold} {Approach} to {Lumping}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {149--167},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2015},
     doi = {10.1051/mmnp/201510312},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp/201510312/}
}