Resolving the Extragalactic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>-Ray Background above 50 GeV with the Fermi Large Area TelescopeM. Ackermann, F. Gargano, L. R. Cominsky et al.|Physical Review Letters|2016Cited by 184