Papers in PDE/Harmonic Analysis of a geometric measure theoretic flavor Hi,

My professor would like me to give a presentation on a paper for a GMT seminar. My background is largely in PDE (elliptic, calc of variations, etc) and Harmonic Analysis. Are there any good papers (preferably not more than 15-20 pages) in these fields that have a non-trivial intersection with GMT? I was thinking Fefferman's ball multiplier paper, but it might be too classical for the seminar.

Any suggestions welcome. Thanks!