Complex sentence: In the 1970s, researchers began studying these algorithms from the point of view of worst-case analysis; see, for instance,, an early work on the worst-case complexity of the maximum clique problem.
Split into simpler sentences: In the 1970s, researchers began studying these algorithms from the point of view of worst-case analysis. See, for instance,, an early work on the worst-case complexity of the maximum clique problem.