Artikel 5

1. A person may designate the law of a particular State to govern the succession to the whole of his estate. The designation will be effective only if at the time of the designation or of his death such person was a national of that State or had his habitual residence there.
2. This designation shall be expressed in a statement made in accordance with the formal requirements for dispositions of property upon death. The existence and material validity of the act of designation are governed by the law designated. If under that law the designation is invalid, the law governing the succession is determined under Article 3.
3. The revocation of such a designation by its maker shall comply with the rules as to form applicable to the revocation of dispositions of property upon death.
4. For the purpose of this Article, a designation of the applicable law, in the absence of an express contrary provision by the deceased, is to be construed as governing succession to the whole of the estate of the deceased whether he died intestate or wholly or partially testate.