Changes

'''Polhemus Liberty''' is a [[magnetic tracking system]] made by [[Polhemus]].<ref name="j470">{{cite web | title=AuSIM Tracker Products | website=AuSIM Inc. | date=2004-01-06 | url=http://www.ausim3d.com/products/trackers.html | access-date=2024-05-21}}</ref>

'''Polhemus Liberty''' is a [[magnetic tracking system]] from [[Polhemus]].<ref name="j470">{{cite web | title=AuSIM Tracker Products | website=AuSIM Inc. | date=2004-01-06 | url=http://www.ausim3d.com/products/trackers.html | access-date=2024-05-21}}</ref>

==References==

==References==

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