Articles

Clay, B.L., Kugrens, P. & Lee, R.E., 1999. A revised classification of Cryptophyta. Bot. J. Linn. Soc. 131: 131-151.

Chapters

Kugrens, P., Lee, R.E. & Hill, D.R.A., 2000. Order Cryptomonadida Senn, 1900. In Lee, J.J., Leedale, G.F. & Bradbury, P., An Illustrated Guide to the Protozoa, Second Edition, vol. 2. Society of Protozoologists, Lawrence, Kansas, U.S.A.: 1111-1125.