Rocha-Mendoza, I., W. Langbein, Peter Watson, and P. Borri, “Differential Coherent anti-Stokes Raman scattering microscopy with linearly-chirped ultrafast laser pulses”, Optics Letters,  v. 42, n. 15, pp. 2258-2253 (2009) https://doi.org/10.1364/OL.34.002258