Letter from the editors
Crossref DOI link: https://doi.org/10.1007/s40329-017-0196-y
Published Online: 2017-10-16
Published Print: 2017-10
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Betti, Renato
Guerraggio, Angelo
Termini, Settimo
License valid from 2017-10-01