Kia ora! I want to display most keywords as usual, but with an exception for those from the 650 field. Specifically, I want to display only those keywords that has the value "x" or "y" in subfield $2, and hide the other 650-keywords. Any hints on how to this in XSLT would be infinitely appreciated, and added to the wiki, so others can benefit from the solution. Here is an example: <datafield tag="650" ind1=" " ind2="0"> <subfield code="a">A</subfield> <subfield code="2">x</subfield> </datafield> <datafield tag="650" ind1=" " ind2="0"> <subfield code="a">B</subfield> <subfield code="2">y</subfield> </datafield> <datafield tag="650" ind1=" " ind2="0"> <subfield code="a">C</subfield> <subfield code="2">z</subfield> </datafield> <datafield tag="653" ind1=" " ind2="0"> <subfield code="a">D</subfield> </datafield> I want to display A and B (because they have $2 = x or y), and D (because it is not 650), but not C (because it is 650 and $2 is neither x nor y). Best regards, Magnus Libriotech