Nature

Teanby, N.A. and Irwin, P.G.J. and Nixon, C.A. and de Kok, R. and Vinatier, S. and Coustenis, A. and Sefton - nash, Elliot and Calcutt, S.B. and Flasar, F.M. (2012) Active upper-atmosphere chemistry and dynamics from polar circulation reversal on Titan. Nature 491 , pp. 732-735. ISSN 0028-0836.