Serbia (Serbian: Србија, Srbija) is a country located in the Balkans, in Southern Europe. During the summer tourists love spending their time in Belgrade and enjoy the nature of many national parks throughout the country. Most European nationals need no visa for entering Serbia.

A Doctorate of Philosophy, or PhD, may require eight years or more to complete, as well as a dissertation. In most fields, the possession of a PhD qualifies the holder to become a professor of a chosen subject. There are many different programs available.