1. Longo L Terapia Laser, Firenze 1986, USES ed.
2. Longo L II laser in flebologia In Mancini S. Trattato Ltaliano di Flebologia, UTET pub., Torino,1997 (in press)
3. Liu l, Svanberg K,Wang I,Andersson-Engels S,Svanberg S Laser Doppler Perfusion Imaging Lasers Surg. Med,1997, 204, 473-480
4. Dixon AE, Damaskinos S,Ribes A,Beesley KMA new confocal scanning beam laser Macroscope using a telecentric, f theta laser scan lensJ Microscopy, 1995, 178: 261 – 266
5. Mester E, Ludany G, Selyei M, Szende B, Tota GJThe stimulating effects of lower power laser rays on biological systems. Laser Rev. 1: 3 – 9, 1968