P. W.  James and F. White, J., ?Studies on the genus Nephroma I. The European and Macaronesian species?, The Lichenologist, vol. 19, pp. 215-268, 1987.

J.  F. White and James, P. W., ?Studies on the genus Nephroma II. The Southern Temperate Species?, The Lichenologist, vol. 20, pp. 103-166, 1988.