Some Aspects of Approximation and Computation for Bayesian ... pdf
https://spiral.imperial.ac.uk/bitstream/.../Efstathiou-M-1997-PhD-Thesis.pdfroute leading to analytic approximations is provided by the asymptotic theory ... An(0) = w(9)/n0 (9) for some prior 7ro(0), e.g. a reference prior; ...