 The study represented an important shift in Christensen’s research towards a more theoretical, social-science-oriented and critical approach.Christensen’s interest in normative developments continued over the years, and in the study "Residential Right in the Tenement House" ("Hemrätt i hyreshuset"), 1994, she took the first steps towards creating the Theory of Law as Normative Patterns in a Normative Field.The theme of the study was the social security of tenancy and the residential rights in the tenement house.