Reference
Igor Pausic, Igor Dakskobler, Bostjan Surina, Branko Dolinar (2018): Taxonomic revision and morphological analysis of Red Vanilla Orchid, Nigritella miniata (Crantz) Janchen 1960 (Orchidaceae-Orchideae) in the Julian and Dinaric Alps (Slovenia) – Wulfenia – 25: 179 - 208.