2The invalidity of the will as an international will shall not affect its formal validity as a will of another kind.

2 The invalidity of the will as an international will shall not affect its formal validity as a will of another kind. Article 2 This law shall not apply to the form of testamentary dispositions made by two or more persons in one instrument. Article 3 1 The will shall be made in writing. 2 It need not be written by the testator himself. 3 It may be written in any language, by hand or by any other means. Article 4 1 The testator shall declare in the presence of two witnesses and of a person authorized to act in connection with international wills that the document is his will and that he knows the contents thereof. 2 The testator need not inform the witnesses, or the authorized person, of the contents of the will. Article 5 1 In the presence of the witnesses and of the authorized person, the testator shall sign the will or, if he has previously signed it, shall acknowledge his signature. 2 When the testator is unable to sign, he shall indicate the reason therefor to the authorized person who shall make note of this on the will. Moreover, the testator may be authorized by the law under which the authorized person was designated to direct another person to sign on his behalf.