Perhaps you should try some spelling variations:
wiener regularity » higher regularity, fine regularity, fueter regularity
"Wiener regularity tests" » "Wiener regularity results", "Wiener regularity aspects", "Wiener regularity theory", "Wiener regularity atsts", "Wiener regularity lists"
"Wiener regularity test" » "Wiener regularity atst", "Wiener regularity list", "Wiener regularity result"

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