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2. Cerf, V., Burleigh, S.: Interplanetary Internet (IPN): Architectural Definition. draft-irtf-ipnrg-arch-01 (Internet Draft). IPN Research Group, Internet Research Task Force (2001). https://tools.ietf.org/html/draft-irtf-ipnrg-arch-01
3. Fall, K.: A delay-tolerant network architecture for challenged internets. In: 2003 conference on Applications, Technologies, Architectures, and Protocols for Computer Communications (SIGCOMM ‘03) Proceedings. ACM (2003). https://doi.org/10.1145/863955.863960
4. Cerf, V., et al.: Delay-Tolerant Networking Architecture. RFC 4838 (Informational), Network Working Group, Internet Research Task Force (2007). https://datatracker.ietf.org/doc/html/rfc4838
5. Scott, K., Burleigh, S.: Bundle Protocol Specification. RFC 5050 (Experimental). Network Working Group, Internet Research Task Force (2007). https://datatracker.ietf.org/doc/html/rfc5050