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- [23] DENSITY CONSTRAINT ON LOCAL INHOMOGENEITIES OF A ROBERTSON-WALKER COSMOLOGICAL UNIVERSE PHYSICAL REVIEW D, 1977, 16 (04): : 927 - 928
- [30] VACUUM FLUCTUATIONS OF A QUANTIZED SCALAR FIELD IN A ROBERTSON-WALKER UNIVERSE PHYSICAL REVIEW D, 1975, 11 (12): : 3378 - 3383