The determinant representation for quantum correlation functions of the   sinh-Gordon model
  We consider the quantum sinh-Gordon model in this paper. Using known formulae for form factors we sum up all their contributions and obtain a closed expression for a correlation function. This expression is a determinant of an integral operator. Similar determinant representations were proven to be useful not only in the theory of correlation functions, but also in the matrix models. 
V. E. Korepin and N. A. Slavnov