b) This is also true for the pertinent Conventions of the International Labour Organization (ILO) that are applicable in Germany. Convention No. 87 of 9 July 1948 concerning Freedom of Association and Protection of the Right to Organize (Law of 20 December 1956, BGBl II p. 2072; cf. also ECtHR, Associated Society of Locomotive Engineers & Firemen (ASLEF) v. the United Kingdom, Judgment of 27 February 2007, No. 11002/05, § 38; (GC), Demir and Baykara v. Turkey, Judgment of 12 November 2008, No. 34503/97, § 70; Enerji Yapı-Yol Sen v. Turkey, Judgement of 21 April 2009, No. 68959/01, § 24) and Convention No. 98 concerning the Application of the Principles of the Right to Organise and to Bargain Collectively of 1 July 1949 (ratified by Law of 23 December 1955, BGBl II p. 1122; to be considered by the labour courts BVerfGE 96, 152 <170>; also BVerfGE 98, 169 <206>; 109, 64 <89>; see also BAG, Judgment of 20 November 2012 - 1 AZR 179/11 -, juris, para. 133; judgment of 20 November 2012 - 1 AZR 611/11 -, juris, para. 76) do not reach beyond the guarantee under the Basic Law either. According to the decision-making practice of the ILO monitoring boards, states are not allowed to specifically support or promote certain trade unions or their members, in order to prevent that they indirectly influence the employees’ decision which trade union they want to join (CFA, Case No 981 <Belgium>, Report No 208, June 1981, Normlex, para. 102; Case No 2139 <Japan>, Report No 328, June 2002, Normlex, para. 445). Provisions pursuant to which only one trade union may exist in specific sectors or professions are also incompatible with the Convention (CFA, Case No 956 <New Zealand>, Report No 204, November 1980, Normlex, para. 177; Case No 266 <Portugal>, Report No 65, 1962, Normlex, para. 61). It must also be regarded as a violation of ILO provisions if the establishment of a trade union would be denied, based on the existence of another trade union (CFA, Case No 103 <United Kingdom>, Report No 15, 1955, Normlex, para. 212). Thus, there are no requirements that reach beyond what is guaranteed by Art. 9(3) GG.