State responsibility — Claims — State control over private claims — Netherlands-Indonesia Lump Sum Settlement Agreement, 1966 — Indonesian measures of nationalization — Lump sum payment to Dutch State in settlement of claims of its nationals — Adjudication and distribution by Dutch State of funds claimed — Whether payments to individual claimants in settlement of such claims constitute profits made in the Netherlands or a gain attributable to a permanent establishment in Indonesia — Indonesia-Netherlands Agreement for the Avoidance of Double Taxation, 1973 — The law of the Netherlands