"Some Thoughts on Schaeffer's Apologetics" (2010) by John Frame

http://www.frame-poythress.org/frame_articles/2010ScrivenerInterview.htm

Steve Scrivener has gathered together John Frame’s comments on Francis Schaeffer’s apologetics from John’s various apologetics books. Steve has added some further reading, some Email correspondence between him and John, and then has reformatted everything into a question and answer format (so the questions [in italics] are Steve’s).