Lecture from revision class for BUGEN5930 is available here:
https://www.dropbox.com/s/3aq3ehe76f012tw/BUGEN5930%20Revision%20Session%206%20October%202014%2096kbps.mp3?dl=0
https://www.dropbox.com/s/3aq3ehe76f012tw/BUGEN5930%20Revision%20Session%206%20October%202014%2096kbps.mp3?dl=0