Deliverable: NO, Plazi, Pensof, BGBM, NBGB, RBGK, 2014, D.4.2 Strategy for improvement & interoperability of the XML schemas, 42, http://wiki.pro-ibiosphere.eu/w/media/c/c6/Pro-iBiosphere_WP4_Plazi_D4_2_VFF31_01_2014.pdf