Alexey Melnikov, Barry Leiba. Sieve Extension: Externally Stored Lists. RFC, 6134:1-18, July 2011. [doi]
@article{rfc6134, title = {Sieve Extension: Externally Stored Lists}, author = {Alexey Melnikov and Barry Leiba}, year = {2011}, month = {July}, doi = {10.17487/RFC6134}, url = {https://doi.org/10.17487/RFC6134}, researchr = {https://researchr.org/publication/rfc6134}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {6134}, pages = {1-18}, }