"Gender discrimination in this regard is prohibited by the Declaration on the Elimination of Discrimination against Women (art. 4 (a) and (c)), the Convention on the Elimination of All Forms of Discrimination against Women (art. 7 (a) and (b)) and the Convention on the Political Rights of Women (arts. II and III). The combined application of the above provisions establishes the broadest reasonable pool of candidates for election, thereby yielding assurances of genuine choice for voters and of the individual rights of candidates to stand for election and to enter public service."