TY  - RPRT
TI  - Bigravity from gradient expansion
AU  - Yamashita, Yasuho
AU  - Tanaka, Takahiro
PY  - 2016
DO  - 10.1088/1475-7516/2016/05/011
UR  - https://www.osti.gov/biblio/22572072
ID  - 22572072
ER  -