Template:Hawksworth & Coppins, 2018a
- Hawksworth, D.L. & Coppins, B.J. 2018. A tribute to Mark Seaward, environmental lichenologist and recorder par excellence, at eighty. The Lichenologist 50(6): 599–602. DOI: 10.1017/S0024282918000488 . ResearchGate .