Brown, A S; Jones, D N; Milton, M J T; Downey, M L; Vargha, G M; van der Veen, A M H*; Ent, H*; Arrhenius, K*; Tuma, D* (2011) Towards a European infrastructure for the characterisation of energy gases. In: 2nd IMEKO TC11 International Symposium Metrological Infrastructure, 15-17 June 2011, Cavtat, Dubrovnik Riviera, Croatia.