1. eMarketer. (2019). “TV and Mobile Devices: Average Time Spent in the US 2014-2021”. https://www.emarketer.com/content/average-us-time-spent-with-mobile-in-2019-has-increased eMarketer. (2019). “TV and Mobile Devices: Average Time Spent in the US 2014-2021”. https://www.emarketer.com/content/average-us-time-spent-with-mobile-in-2019-has-increased
2. User-Centric Companion Screen Architecture for Improving Accessibility of Broadcast Services
3. IETF. (2009). “RFC 5545 Internet Calendaring and Scheduling Core Object Specification (iCalendar)”. https://tools.ietf.org/html/rfc5545 IETF. (2009). “RFC 5545 Internet Calendaring and Scheduling Core Object Specification (iCalendar)”. https://tools.ietf.org/html/rfc5545
4. ETSI. (2016). “ETSI TS 102 796 v1.4.1 Hybrid Broadcast Broadband TV”. http://www.etsi.org/deliver/etsi_ts/102700_102799/102796/01.04.01_60/ts_102796v010401p.pdf ETSI. (2016). “ETSI TS 102 796 v1.4.1 Hybrid Broadcast Broadband TV”. http://www.etsi.org/deliver/etsi_ts/102700_102799/102796/01.04.01_60/ts_102796v010401p.pdf
5. IPTV FORUM JAPAN. (2018). “IPTVFJ STD-0010 Integrated Broadcast-Broadband System Specification Version2.2”. https://www.iptvforum.jp/en/download/input.html IPTV FORUM JAPAN. (2018). “IPTVFJ STD-0010 Integrated Broadcast-Broadband System Specification Version2.2”. https://www.iptvforum.jp/en/download/input.html