Looking for good book- Eastern Front WWI

[Chad1]

I've been trying to dig up info on the Eastern Front in WWI. In particular, I am interested in the period surround the the signing of the treaty of Brest-Litovsk; the period where the German basically grabbed a whole lot of territory without much resistance.

Can anybody recommend a good resource for detailed information on this period and region?

Thanks in advance.

[Xray]

Churchill gives a surprisingly detailed account of German/Russian affairs in his multi volume memoirs.
I'm sure there are more detailed works, but Churchill after all did have a very high perspective, had a vivid writing stlye ... And they are usually available at most any library, might be a good starting point.
The time period you refer to would, no doubt, be in the last volume, or perhaps second to last.