TITLE: Book recommendation for ordinary differential equations
QUESTION [12 upvotes]: This question has been posted before, but I need book with specific qualifications. I do not need books for engineers, book that is centered around calculations and stuff. I need to find a book that is theoretical, proves the statements and has good presentation of the theoretical structure. I have had the book by Tenenbaum, I did not like it. I would be very very thankful if someone shared their knowledge with us about this matter.

REPLY [4 votes]: Here are a few more suggestions:

H. Amann, Ordinary Differential Equations
C. Chicone, Ordinary Differential Equations with Applications