Incorrect Citation reference (citeinfo) in eml-coverage, temporalCov and taxonomicCov
The geolcit, classcit, and idref elements in eml-coverage.xsd use a complex type
consisting of one element reference in a sequence. The reference is to the
citeinfo element, which is a single element defined in eml-coverage.xsd (with no
documentation). This element ref needs to be changed to point to an eml
literature citation field. Most likely, we would have to import citation into
eml-coverage for this to work appropriately.