known as "John Smith-Jones" and "Mary Smith-Jones". A spouse may also opt to use their birth name as a middle name, and e.g. become known as "Mary Jones Smith". An additional option, although rarely practiced, is the adoption of the last name derived from a blend of the prior names, such as "Simones", which also requires a legal name change. Some couples keep their own last names but give their children hyphenated or combined surnames. In 1979, the United Nations adopted the Convention on the Elimination of All Forms of Discrimination Against Women ("CEDAW"), which declared in effect that women and men, and specifically wife and husband, shall have the same rights to choose a "family name", as well as a profession and an occupation. In some places, civil rights lawsuits or constitutional amendments changed the law so that men could also easily change their married names (e.g., in British Columbia and California). Québec law permits neither spouse to change surnames. In France, until 1 January 2005, children were required by law to take the surname of their father. Article 311-21 of the French Civil code now permits parents to give their children the family name of either their father, mother, or hyphenation of both – although no more than two names can be hyphenated. In cases of disagreement, both names are used in alphabetical order. This brought France into line with a 1978 declaration by the Council of Europe requiring member governments to take measures to adopt equality of rights in the transmission of family names, a measure that was echoed by the United Nations in 1979. Similar measures were adopted by West Germany (1976), Sweden (1982), Denmark (1983), Finland (1985) and Spain (1999). The European Community has been active in eliminating gender discrimination. Several cases concerning discrimination in family names have reached the courts. Burghartz v. Switzerland challenged the lack of an option for husbands to add the wife's surname to his surname, which they had chosen as the family name when this option was available for women. Losonci Rose and Rose v. Switzerland challenged a prohibition on foreign men married to Swiss women keeping their surname if this option was provided in their national law, an option available to women. Ünal Tekeli v. Turkey challenged prohibitions on women using their surname as the family name, an option only available to men. The Court found all these laws