1. LoRa developers portal. https://lora-developers.semtech.com/
2. Slats, A.: A Brief History of LoRa: Three Inventors Share Their Personal Story at The Things Conference 2020 (2020). https://blog.semtech.com/a-brief-history-of-lora-three-inventors-share-their-personal-story-at-the-things-conference. Dec 2020
3. Semtech: LoRaTM Modulation Basics, Application note AN1200.22, 2015 (2020). https://semtech.my.salesforce.com/sfc/p/E0000000JelG/a/2R0000001OJa/2BF2MTeiqIwkmxkcjjDZzalPUGlJ76lLdqiv.30prH8. Dec 2020
4. LoRa Alliance: LoRaWAN Regional Parameters, 2020 (2020). https://lora-alliance.org/sites/default/files/2020-06/rp_2-1.0.1.pdf. Dec 2020
5. LoRa Alliance: LoRaWAN 1.1 Specification, 2020 (2020). https://lora-alliance.org/sites/default/files/2018-04/lorawantm_specification_-v1.1.pdf. Dec 2020