(Q914299)
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Wikipedia(9 entries)
- arwiki رغوة مغزلية
- cswiki Spinová pěna
- dewiki Spin-Schaum
- enwiki Spin foam
- itwiki Schiuma di spin
- kowiki 스핀 거품
- ptwiki Espuma de spin
- svwiki Spinnskum
- zhwiki 自旋泡沫
in quantum gravity, a structure consisting of two-dimensional faces for path integrals