@Misc{ 
  AsCaCaMa21,
  author = { Ascione, Giacomo and Castorina, Daniele and Catino, Giovanni and Mantegazza, Carlo },
  title = { A matrix Harnack inequality for semilinear heat equations },
  journal = {  },
  year = { 2021 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/513/ },
  note = { cvgmt preprint}
}