@misc{grachev-2026-marketplace-health-index-protocol,
  author = {Грачев, Игорь},
  title = {Marketplace Health Index: исследовательский протокол},
  year = {2026},
  url = {https://igorgrachev.ru/ru/research/marketplace-health-index-protocol/},
  note = {Version 0.1, accessed 2026-10-05}
}