@article{Weber_2014,
    doi = {10.1137/130945983},
    url = {https://doi.org/10.1137%2F130945983},
    year = {2014},
    month = {jan},
    publisher = {Society for Industrial {\&} Applied Mathematics ({SIAM})},
    volume = {52},
    number = {5},
    pages = {2857--2876},
    author = {Alexander Weber and Gunther Reissig},
    title = {Classical and Strong Convexity of Sublevel Sets and Application to Attainable Sets of Nonlinear Systems},
    journal = {{SIAM} Journal on Control and Optimization}
}

@article{Weber_2014, doi = {10.1137/130945983}, url = {https://doi.org/10.1137%2F130945983}, year = {2014}, month = {jan}, publisher = {Society for Industrial {\&} Applied Mathematics ({SIAM})}, volume = {52}, number = {5}, pages = {2857--2876}, author = {Alexander Weber and Gunther Reissig}, title = {Classical and Strong Convexity of Sublevel Sets and Application to Attainable Sets of Nonlinear Systems}, journal = {{SIAM} Journal on Control and Optimization} }