Monica Galiano, Paul-Michael Agapow, Catherine Thompson, Steven Platt, Anthony Underwood, Joanna Ellis, Richard Myers, Jonathan Green, Maria Zambon,
Evolutionary Pathways of the Pandemic Influenza A (H1N1) 2009 in the UK PLoS ONE. ,vol. 6, pp. e23779- ,(2011) ,
10.1371/JOURNAL.PONE.0023779