Schengen dual citizen, non resident + Australia wife 6 month visit?

Given an Australian-Schengen area dual citizen who has an Australian single citizen wife is it possible for the couple to visit the Schengen area together for more than 90 days without taking up residency there?
I have reviewed Schengen visa for non-EU spouse of EU citizen http://europa.eu/youreurope/citizens/residence/family-residence-rights/non-eu-wife-husband-children/index_en.htm Non-EU spouse of an EU citizen - is visiting EU without needing a visa possible? but I do not see an answer to this particular question.
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Can I stay in Europe for 6 months?
Once you are allowed to enter the Schengen Area \u2014 with just your passport or with a short-term visa \u2014 you are ONLY permitted to stay for 3 months (90 days) in any 6-month period (180 days).Can my non EU spouse travel with me?
Travelling in the EU with your non-EU family members Under EU rules, you have the right to travel together with your core family members (non-EU spouse, children, dependent parents or dependent grandparents) to an EU country other than the one you are a national of.Does my wife need a Schengen Visa?
As the husband or wife of an EU citizen, you cannot legally stay in the Schengen area without applying for a visa, unless you have some form of residency in the zone.How long can Australians stay in Schengen Area?
Entry and exit in the Schengen area Australians don't need a visa to travel to countries in the Schengen area for up to 90 days in any 180-day period. If you leave the Schengen area and return within the same 180-day period, the previous stay will count towards the 90 day maximum.HOW TO GET ITALIAN CITIZENSHIP | DUAL CITIZENSHIP Jure Sanguinis
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