Theory and methods of computational vibronic spectroscopy
S. A. Astakhov, V. I. Baranov, and L. A. Gribov, Nova Science Publishers, New York, 2008.
Spectral Mixture Decomposition by Least Dependent Component Analysis
Sergey A. Astakhov, Harald Stögbauer, Alexander Kraskov, Peter Grassberger, 2005-09-07