"Rebreather Absorbent Handling"By Jeffrey Bozanic and Peter Readey ©1998 Steam Machines, Inc..
"Oxygen and your Ears" Immersed, Winter, 2003 (7:4) pp. 42-46. Divers using enriched gasses can experience ear squeeze on the surface after a dive. Middle Ear Oxygen Absorption Syndrome.

"What is a Rebreather" Immersed, Spring, 2004 (8:1) p. 38. A basic discussion of rebreathers.