@Misc{ 
  CanFloKha17,
  author = { Cannarsa, Piermarco and Floridia, Giuseppe and Khapalov, Alexander Y. },
  title = { Multiplicative controllability for semilinear reaction-diffusion equations with finitely many changes of sign },
  journal = { Journal de Mathématiques Pures et Appliquées },
  year = { 2017 },
  doi = { https://doi.org/10.1016/j.matpur.2017.07.002 },
  volume = { 108 },
  number = { 4 },
  pages = { 425–458 },
  URL = { http://cvgmt.sns.it/paper/3699/ },
  note = { cvgmt preprint}
}