TY  - JOUR
AU  - Andrew Douglas
AU  - Joe Repka
TI  - The GraviGUT Algebra Is not a Subalgebra of $E_8$, but $E_8$ Does Contain an Extended GraviGUT Algebra
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2014
VL  - 10
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2014_10_a71/
LA  - en
ID  - SIGMA_2014_10_a71
ER  -