Olympic Lifting Articles
Catalystathletics explained how to strengthen the lower back in the article Ask Greg: Strengthening the Lower Back outlining specific exercises to strengthen the lower back with specific weightlifting exercises, as well as describing some general lower back strengthening exercises.
Zach Telander said You don’t train Bulgarian, bro. a rant on why most people don’t really train after the Bulgarian Weightlifting System, by discussing the Bulgarian Weightlifting System, how it works and what the real characteristics are. Honestly, I am not a big fan of rants, but the video does a good job at explaining in short what the Bulgarian Weightlifting System is, check out the discussion