Literature for x^x and Sophomore's Dream

[Ztolk]

By the way, you can use Russian Rambler search engine to search for this function:

http://nova.rambler.ru/srch?query=%22x^x%22

Or you can use Uniquotation - special mathematical formula search engine which searches TEX formulas:

http://uniquation.ru/ru/solution-tex.aspx?query=x^x

http://uniquation.ru/ru/solution-tex.asp...int+x^x+dx

Thanks for the links. Now I have to learn Russian...