title: Erratum to: Optimal solution for a cancer radiotherapy problem.
authors.affiliation: Istituto di Analisi dei Sistemi ed Informatica "A. Ruberti",CNR, Viale Manzoni 30, 00185 , Roma, Italy, sandro.bertuzzi@iasi.cnr.it.
authors.forename: A
authors.initials: A
authors.lastname: Bertuzzi
authors.forename: C
authors.initials: C
authors.lastname: Bruni
authors.forename: F
authors.initials: F
authors.lastname: Papa
authors.forename: C
authors.initials: C
authors.lastname: Sinisgalli