HIFI: Hypertext Interface for Information Systems. - Umberto Cavallaro; Franca Garzotto; Paolo Paolini; Domenico Totaro (IEEE Softw., 1993)

HIFI - Hypertext interface to external databases. - Umberto Cavallaro (Designing User Interfaces for Hypermedia, 1995)

HIFINBIPOP - Hypertext Interface to FINancial data in BIPOP bank (Italy). - Umberto Cavallaro; Marco Tentori (Designing User Interfaces for Hypermedia, 1995)