1. Kevin Ashton. That ‘internet of things’ thing. Jun 2009.
2. DIN SPEC 91357:2017-12, Reference Architecture Model Open Urban Platform (OUP), Dec 2017.
3. Liebherr, "Liebherr präsentiert den intelligenten Kühlschrank von morgen", online: https://www.liebherr.com/de/deu/aktuelles/news-pressemitteilungen/detail/liebherr-pr%C3%A4sentiert-den-intelligenten-k%C3%BChlschrank-von-morgen.html, last visited: 12.04.2020
4. IEEE 802.15.4-2015-12, “IEEE Standard for Low-Rate Wireless Networks”, URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7460875, Dec. 2015.
5. RFC 4944, Transmission of IPv6 Packets over IEEE 802.15.4 Networks. URL: https://tools.ietf.org/pdf/rfc4944.pdf, Sep 2007