References

K. König, I. Riemann:
High-resolution multiphoton tomography of human skin with subcellular spatial resolution and picosecond time resolution. Journal of Biomedical Optics 8, 432-439 (2003)

K. König et al.:
Optical tomography of human skin with sucellular spatial and picosecond time resolution using intense near infrared femtosecond laser pulses. SPIE-Proceedings 4620, 191-201 (2002)