%0 Journal Article
%A et The EHT Collaboration al.
%B ApJL
%D 2019
%G eng
%P 1
%T First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
%U https://iopscience.iop.org/article/10.3847/2041-8213/ab0ec7
%V 875