Modeling the dust emission from PN IC418
  We construct a detailed model for the IR dust emission from the PN IC 418. We succeed to reproduce the emission from 2 to 200$\mu$m. We can determine the amount of emitting dust as well as its composition, and compare to the depletion of elements determined for the photoionized region. 
Christophe Morisset, Ryszard Szczerba, D. A. Garcia-Hernandez, Pedro   Garcia-Lario
astro-ph.GA