The Paris equation should correctly be referred to as the ERDOGAN-PARIS equation, maybe some more names may be needed.
LEFM is a term bandied about in the text books, but very few texts know how to define what it means and how it applies.
You can take my course. What happened to the earlier posts about my course.
Anyone who contributes to my DORN-RAJNAK or HARPER DORN will be given credit.