@book{markianovakarjalan2002,
  address   = {Petrozavodsk},
  author    = {Markianova, Ludmila},
  publisher = {Periodika},
  title     = {Karjalan kielioppi 5–9},
  url       = {https://opastajat.net/opastus/grammar/index.html},
  year      = {2002}
}