1. The ADU vaporising unit: a new vaporizer;Hendrickx;Anesth Analg,2001
2. New and alternative delivery concepts and techniques;Baum;Best Pract Res Clin Anaesthesiol,2005
3. Essentials of anaesthetic equipment;Al-Shakh,2007
4. Basic physics and measurement in anaesthesia;Davis,2003
5. Ward’s anaesthetic equipment;Davey,2006