To what extent is the idea separable from its specific material expression, and how much latitude can there be in the material object for it to constitute an expression of that idea? Does the work of authorship lie in the material object or in the plans and instructions for its realization? If the artist has the power to declare an object to be a work of art, to what extent does the artis have the power to revise that declaration, and to what extent is that power of declaration transferred with the sale of the work? These considerations are typically the province of conceptual rather than minimal art [...] No single answer can be given to the question of where the 'work' resides, since the answers vary, even within the approach taken by individual artists [As Sol LeWitt writes] "when an artist uses a conceptual form of art, it means that all of the planning and decisions are made beforehand and the execution is a perfunctory affair. The idea becomes the machine that makes the art". Buskirk, 2003, p. 27, p. 39