An interferometric study of the post-AGB binary 89 Herculis - II. Radiative transfer models of the circumbinary diskM. Hillen, J. Menu, H. Van Winckel, M. Min, C. Gielen, T. Wevers, G. D. Mulders, S. Regibo and T. VerhoelstA&A, 568 (2014) A12DOI: https://doi.org/10.1051/0004-6361/201423749