International organizations — Immunity — officials — Jurisdictional immunity — Austria-International Atomic Energy Agency Headquarters Agreement, 1958, Article XV, Section 39(c) — Waiver of immunity — Whether immunity may be waived by official or only by organization — Proceedings instituted by official — Whether automatically removing immunity in respect of counterclaims — Definition of a counterclaim — Proceedings regarding custody of child

Diplomatic relations — Immunity — Diplomat — Waiver of immunity — Family of diplomat — Child of divorced parents living apart from diplomat — Scope of immunity — Vienna Convention on Diplomatic Relations, 1961, Articles 31, 32 and 37 — The law of Austria