Here is a source that talks about this issue in more detail: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.66.2107&rep=rep1&type=pdf http://citeseer

Here is a source that talks about this issue in more detail: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.66.2107&rep=rep1&type=pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.66....