Xenoturbellida related papers (dynamic)
How to view the "by taxa" list:
Go to http://mapress.com/j/zt/search, Click on "Additional Search Options", put the taxon name in "Keyword(s)" column (e.g. Coleoptera), and choose the publication date range. After that, click on search.
List of Xenoturbellida related papers published in year 2001 to 2015 are available from here: http://mapress.com/zootaxa/taxa/Xenoturbellida.html