Atholl Johnston

Delivering quality for the measurement of immunosuppressive drugs: current performance and future needs

David W. Holt, Atholl Johnston, 1999 .

Nutrient conditions for different levels of ecological status and biological quality in surface waters (Phase 1). R&D Technical Report P2-260/4.

Jessica Winder, Laurence Carvalho, Don Monteith, 2002 .