@article{LetunicKhedkarBork2021,
  author    = {Ivica Letunic and Supriya Khedkar and Peer Bork},
  title     = {SMART: recent updates, new developments and status in 2020},
  journal   = {Nucleic Acids Research},
  volume    = {49},
  number    = {D1},
  doi       = {10.1093/nar/gkaa937},
  year      = {2021},
}