PETRUS TAPELO MOHAPI
I knew that later on when I looked at another paper which was written in English and my own document have already been sent and I could realise that I was supposed to write some certain things of which I didn't include in my paper.  Just have a look in 9A, that is a lengthy, lengthy issue, even if you had to go through it, it is very complicated.  Really I can't understand it personally.