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J. V. Cunha and R. C. Santos, “The Existence of an Old Quasar at z=3.91 and Its Im-plications for λ(t) Deflationary Cosmologies,” International Journal of Modern Physics D, Vol. 13, 2004, p. 1321. doi：10.1142/S0218271804005481

has been cited by the following article:

• TITLE: 1-A Cosmological Model with Varying G and ∧ in General Relativity

  AUTHORS: Harpreet, R. K. Tiwari, H. S. Sahota

  KEYWORDS: Bianchi Type-I Universe; Varying G and ∧; Cosmology; Hubble Parameter

  JOURNAL NAME: Open Journal of Applied Sciences, Vol.3 No.1B1, July 12, 2013

  ABSTRACT: In this paper homogeneous Bianchi type -I space-time with variable G and L containing matter in the form of a perfect fluid assuming the cosmological term proportional to H2 (where H is Hubble Parameter). Initially the model has a point type singularity, gravitational constant G (t) is decreasing and cosmological constant L is infinite at this time. When time increases,L decrease. The model does not approach isotropy, if it is small. The model is quasi-isotropic for large value of it.