Radia J. Perlman. A comparison between two routing protocols: OSPF and IS-IS. IEEE Network, 5(5):18-24, 1991. [doi]
@article{Perlman91, title = {A comparison between two routing protocols: OSPF and IS-IS}, author = {Radia J. Perlman}, year = {1991}, doi = {10.1109/65.121955}, url = {https://doi.org/10.1109/65.121955}, researchr = {https://researchr.org/publication/Perlman91}, cites = {0}, citedby = {0}, journal = {IEEE Network}, volume = {5}, number = {5}, pages = {18-24}, }