Case C-72/05: Judgment of the Court (First Chamber) of 14 September 2006 (reference for a preliminary ruling from the Finanzgericht München, Germany) — Hausgemeinschaft Jörg und Stefanie Wollny v Finanzamt Landshut (Sixth VAT Directive — Article 11A(1)(c) — Use of property forming part of the assets of a business for private purposes by a taxable person — Treatment of that use as a supply of services for consideration — Determination of the taxable amount — Definition of full cost to the taxable person of providing those services)