1) Listen to our class on the topic of "Hilkheta KeBatra'ei" here. Follow along with the source sheets here.
2) Though there has been a lot written on this topic, the "classic" article was written by Prof. Israel Ta-Shma. Read it in its original Hebrew here, and in its English translation here. (The English translation is scanned from the excellent book of essays by Ta-Shma, Creativity and Tradition).
3) See the short paper that I wrote a number of years ago. It summarizes several of the core issues discussed in this class.