Trapping of CH4, CO, and CO2 in amorphous water ice. Mastrapa, R. M. E. ; Brown, R. H. ; Anicich, V. G. ; Cohen, B. A. ; Dai, W. ; Lunine, J. I. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: September 1999 Bibcode: 1999BAAS...31.1169M