For ERA 2018, Clarivate Analytics provided citation information for the round. Reference Periods Submission data for ERA was collected for the following reference periods: Data type Reference period Years Research Outputs 1 January 2011 – 31 December 2016 6 Research Income 1 January 2014 – 31 December 2016 3 Applied Measures 1 January 2014 – 31 December 2016 3 Staff Census Date As at 31 March 2017