Arin Klug has written:
'Emotional arousal and information processing: Examining transient and learning-related changes in perceptual sensitivity'
Alfred Klug has written: 'Ernst Rudolf Neubauer'
J. Klug has written: 'Der Heiland der Welt'
Wolfgang Klug has written: 'Ausverkauf oder Modernisierung?' -- subject(s): Social service, Social workers
Eugene F. A. Klug has written: 'From Luther to Chemnitz' -- subject(s): Bible, Criticism, interpretation, History
Frosch has written: 'Aus Menschen werde einer klug!'
Arin Murphy-Hiscock has written: 'Power spellcraft for life' -- subject(s): Charms, Magic 'Pagan Pregnancy'
Monika Klug has written: 'Zur Ableitung von Kapitalkosten aus dem diskreten Optionspreismodell' -- subject(s): Mathematical models, Prices, Stocks
Ulrich Klug has written: 'Juristische Logik' -- subject(s): Law, Interpretation and construction, Logic 'Philosophie und Recht' -- subject(s): Philosophy, Law
Arin Smith has written: 'An Alaskan approach towards a sustainabe [i.e. sustainable] community' -- subject(s): Cities and towns, Growth, Sustainable development
Erna Klug has written: 'Erndel, Sterndel, Zuckerkerndel: eine Kindheit im Krieg, auf der Flucht und in der Nachkriegszeit' -- subject(s): Biografie, Genealogie, Genealogie Biografie, OUR Brockhaus selection
The correct grammar in the question depends on what you are trying to say:Bist Du Frau Klug? - Are you Mrs Klug? (informal)Sind Sie Frau Klug? - Are you Mrs Klug? (formal)Ist sie Frau Klug? - Is she Mrs Klug?
Arin