Z.  Bihary, Karavitis, M. , Gerber, R. B. , and Apkarian, V. A. 2001. ?Spectral Inhomogeneity Induced By Vacancies And Thermal Phonons And Associated Observables In Time- And Frequency-Domain Nonlinear Spectroscopy: I-2 Isolated In Matrix Argon?. Journal Of Chemical Physics, 115, Pp. 8006-8013. doi:10.1063/1.1408917.