@article{leskinen-et-al-lettersampo-2026,
  journal		= {Semantic Web},
  title         = {Knowledge Graphs and Data Services for Studying Historical Epistolary Data in Network Science on the Semantic Web},
  author        = {Petri Leskinen, Javier Ureña-Carrion, Jouni Tuominen, Mikko Kivelä, Eero Hyvönen},
  year          = {2026},
  volume        = {17},
  number        = {4},
  url           = {https://doi.org/10.1177/22104968261452976}
  OPTannotate 	= {},
  OPTproject 	=  {http://seco.cs.aalto.fi/projects/coco/, https://seco.cs.aalto.fi/projects/rrl}
}