1. Didymodon reediiRobins., a moss new to the British Isles
2. Corley MFV, Hill MO. 1981. Distribution of bryophytes in the British Isles. Cardiff: British Bryological Society.
3. Nyholm E. 1956. Illustrated moss flora of Fennoscandia. IL Musci, Fascicle 2. Lund: Gleerup
4. Nyholm E. 1969. Illustrated moss flora of Fennoscandia. II. Musci. Fascicle. 6. Lund: Gleerup.