Human rights — Freedom of expression — Prohibition of discrimination — Sexual orientation — Lesbian, gay, bisexual and transgender issues — Applicants gay rights activists — Applicants fined for administrative offence in Russia of public activities aimed at promotion of homosexuality among minors — Existence of legislative ban in Russia on promotion of homosexuality or non-traditional sexual relations among minors — Whether Russian legislative provisions compatible with European Convention on Human Rights, 1950 — Whether legislative provisions violating applicants’ rights to freedom of expression — Whether interference with exercise of freedom of expression — Whether interference justified — Public morals — Public health — Rights of others — Whether legislative ban discriminatory — Whether respondent State violating Article 10, and Article 14 taken in conjunction with Article 10, of the European Convention on Human Rights, 1950