%0 Journal Article
%T The boundary is mixed
%A Bianchi, Eugenio
%A Haggard, Hal
%A Rovelli, Carlo
%J General Relativity and Gravitation
%V 49
%N 8
%P 1-17
%@ 0001-7701
%D 2017-07-07
%I Springer US
%~ DeepDyve