Ross W. Callon. Use of OSI IS-IS for routing in TCP/IP and dual environments. RFC, 1195:1-85, December 1990. [doi]
@article{rfc1195, title = {Use of OSI IS-IS for routing in TCP/IP and dual environments}, author = {Ross W. Callon}, year = {1990}, month = {December}, doi = {10.17487/RFC1195}, url = {https://doi.org/10.17487/RFC1195}, researchr = {https://researchr.org/publication/rfc1195}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {1195}, pages = {1-85}, }