Christian L. Wiktor, Multilateral Treaty Calendar: Répertoire Des Traités Multilatéraux, 1648-1995, Martinus Nijhoff Publisher, 1998, ISBN90-411-0584-0, Google Print, p.188
Thomas D. Grant, The Recognition of States: Law and Practice in Debate and Evolution, Praeger/Greenwood, 1999, ISBN0275963500Google Print, p.114