Buczkowska K., Bakalin V., Bączkiewicz A., Aguero B., Gonera P., Ślipiko M., Szczecińska M., Sawicki J. 2018. Does Calypogeia azurea (Calypogeiaceae, Marchantiophyta) occur outside Europe? Molecular and morphological evidence. PLOS ONE. 13(10): e0204561. doi:10.1371/journal.pone.0204561