Academic Source Search / Bibliography with abstracts

Hello, the project requires an academic source search / bibliography on the topic of Robo Advice. I would need the sources and - if possible - the corresponding PDFs of the articles. The is no drafting of text necessary, I am just interested to get an in depth overview of the topic. Definition of Robo Advice What is a 'Robo-advisor (robo-adviser)'? A robo-advisor (robo-adviser) is an online wealth management service that provides automated, algorithm-based portfolio management advice without the use human financial planners. Robo-advisors (or robo-advisers) use the same software as traditional advisors, but usually only offer portfolio management and do not get involved in more personal aspects of wealth management, such as taxes and retirement or estate planning. Other related names/synonyms coming to my mind are for example: Robo Advising, Robo Advisor, Robo Advisory, Online Investment Advisers, Online Wealth Management, Digital Wealth Management, Automated Investment Service Firm, Automated Investment Management, Digital Investment Services I am looking forward for your replies.