I am trying to merge two xml files using XSLT1.0. I am trying to merge FileOne and Filetwo to merge to a new xml file. The resultant xml should contain one element from file two based on the value from measurement tag. Any help would be greatly appreciated

Fileone.xml
<Schedule name="NE3S">
<Item scheduleId="1" startDate="2013-01-01" stopDate="2037-12-31">
...