Lu, N., Zhao, F.-X. and Bergou, J. (1989) Nonlinear Theory of a Two-Photon Correlated-Spontaneous-Emission Laser: A Coherently Pumped Two-Level-Two-Photon Laser. Physical Review A, 39, 5189.
http://dx.doi.org/10.1103/PhysRevA.39.5189

has been cited by the following article:

• TITLE: RETRACTED:Generation of Bright Squeezed Light from N Three-Level Atoms Pumped by a Coherent Light: Open Quantum System

  AUTHORS: Getachew A. Gebru

  KEYWORDS: Spontaneous Emission, Operator Dynamics, Photon Statistics, Power Spectrum, Quadrature squeezing, Quadrature Fluctuations

  JOURNAL NAME: Journal of Quantum Information Science, Vol.6 No.2, June 30, 2016

  ABSTRACT: Short Retraction Notice The paper does not meet the standards of "Journal of Quantum Information Science". This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused. Please see the article page for more details. The full retraction notice in PDF is preceding the original paper which is marked "RETRACTED".