On the production of focus

[1]  Mats Rooth.  A theory of focus interpretation , 1992, Natural Language Semantics.

[2]  Earl D. Sacerdoti,et al.  Planning in a Hierarchy of Abstraction Spaces , 1974, IJCAI.

[3]  R. Klabunde,et al.  Focus as perspectivation , 2003 .

[4]  John D. Phillips,et al.  Generation of text from logical formulae , 1993, Machine Translation.