Wall R. Comparer ménages et familles au niveau Européen: problèmes et perspectives. Population 1996; 51 (1 (January / Februar): 93-116.

Classification of households and their members are not interest provided they help to identify key characteristics of family and residence models. Those outlined here satisfy this need by indicating the number of individuals of different sexes, ages, and marital status who are living as a couple, or as single parents, as well as the number who are living with relatives, with unrelated persons, or on their own. The figures show how many people in a given age group are part of a nuclear family, co-reside with relatives, or belong to a household which includes this type of nucleus.
Tables in this study provide evidence for the assessment of co-residence calculated from sample (one per cent), of the Censuses of England and Wales for 1981 and of Great Britain in 1991.
In the beginning, attention is given to individual's position in the household. This was based on the hypothesis that a detailed approach to inter-personal relationships would result in a better understanding of residence models. Finally, tables were designed to provide better information on the characteristics of households that include unrelated persons to indicate de facto marital status, or single parenthood, and to point out the relative rarity of non-traditional households i.e. of those which consist of other than single individuals; couples with children but no other co-residents, and childless couples.