<http://schema.org/description>
"Illinois Governor signed H.B. 3157, which (1) eliminates composite returns and (2) non-resident withholding required, alternative apportionment updated"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pwc.com/us/en/state-local-tax/newsletters/mysto/illinois-withholding-alternative-apportionment-changes.html>