Evolution of cancer cell populations under cytotoxic therapy and treatment optimisation: insight from a phenotype-structured modelLuís Almeida, Patrizia Bagnerini, Giulia Fabrini, Barry D. Hughes and Tommaso LorenziESAIM: M2AN, 53 4 (2019) 1157-1190DOI: https://doi.org/10.1051/m2an/2019010