Nanomaterials for environmental studies: Classification, reference material issues, and strategies for physico-chemical characterisation.

Stone, V.; Nowack, B.; Baun, A.; van den Brink, N.; von der Kammer, F.; Dusinska, M.; Handy, R.; Hankin, S.; Hassellöv, M.; Joner, E.; Fernandes, T.F.