Assertion: phosphoric acid's concentration | /r/AtLocation | slack
Facets:
value: at in
type: LOCATION
value: at pages
type: LOCATION
Source sentences:
text: The concentration of crystal modifier (whether in salt or acid form) can be far lower in the present process than in such prior art processes as described in Slack (ibid) at pages 369-386 or in U.S. Pat.