@dataset{gtamap_v1_1_2026,
  author = {{GTAmap Project}},
  title = {GTAmap v1.1: Global Multi-year Administrative Divisions Dataset (2000--2026)},
  year = {2026},
  version = {1.1},
  url = {https://gtamapdata.org/},
  note = {Record administrative level, snapshot year and access date. DOI pending.}
}