Igor Bryskin, Lou Berger. OSPF-Based Layer 1 VPN Auto-Discovery. RFC, 5252:1-11, July 2008. [doi]
@article{rfc5252, title = {OSPF-Based Layer 1 VPN Auto-Discovery}, author = {Igor Bryskin and Lou Berger}, year = {2008}, month = {July}, doi = {10.17487/RFC5252}, url = {https://doi.org/10.17487/RFC5252}, researchr = {https://researchr.org/publication/rfc5252}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {5252}, pages = {1-11}, }