Smart Mobility: A Systematic Literature Review of Mobility Assistants to Support Multi-modal Transportation Situations in Smart Cities Nelson Pacheco Rocha Ana Dias Gonçalo Santinha M'ario Rodrigues Alexandra Queir'os Carlos Rodrigues Publication Book Title: Integrated Science in Digital Age 2020 Year of Publication: 2021 Pagination: 303--312 Identifiers ISBN: 2367-3389 ISBN Number: 9783030492649 Other Numbers: 94481626 Alternative titles DOIGoogle ScholarBibTeXRIS Locators