### [Source](https://github.com/ALICE-InRu/Thesis/blob/master/chapters/defdifficulty.tex) Mostly based on publication [InRu12](https://github.com/ALICE-InRu/Thesis/blob/master/papers/InRu12.pdf) - although there is some new material towards the end.
Source
Mostly based on publication InRu12 - although there is some new material towards the end.