Hey guys. I'll be doing my first research project with a professor and although the details are a bit unclear, he gave me the topic at hand and the problem we'll be tackling: the Sitnikov problem. To quote him, He also suggested that I should learn about the following topics: I'm currently working from Introduction to Hamiltonian Dynamical Systems and the N-Body Problem by Hall and Meyer. I read like the first 50 pages, then I just started picking the book apart for the stuff in the latter quotes. However, some of it is a bit unclear and some of the topics are not in the book (these are boldened), thus leaving me searching for more sources. I was wondering if anyone knew of any good books/pdf/article/etc. on these topics, or perhaps on the Sitnikov problem. I could use the help.