@article{Angeli_2011,
    doi = {10.1137/090779401},
    url = {https://doi.org/10.1137%2F090779401},
    year = {2011},
    month = {jan},
    publisher = {Society for Industrial {\&} Applied Mathematics ({SIAM})},
    volume = {71},
    number = {1},
    pages = {128--146},
    author = {David Angeli and Patrick De Leenheer and Eduardo D. Sontag},
    title = {Persistence Results for Chemical Reaction Networks with Time-Dependent Kinetics and No Global Conservation Laws},
    journal = {{SIAM} Journal on Applied Mathematics}
}

@article{Angeli_2011, doi = {10.1137/090779401}, url = {https://doi.org/10.1137%2F090779401}, year = {2011}, month = {jan}, publisher = {Society for Industrial {\&} Applied Mathematics ({SIAM})}, volume = {71}, number = {1}, pages = {128--146}, author = {David Angeli and Patrick De Leenheer and Eduardo D. Sontag}, title = {Persistence Results for Chemical Reaction Networks with Time-Dependent Kinetics and No Global Conservation Laws}, journal = {{SIAM} Journal on Applied Mathematics} }