G. Tonnquist

25 years of colour with the AIC—and 25 000 without†

G. Tonnquist, 1993 .

Natural color system--a new method for evaluating skin colors during argon laser treatment of port-wine stain.

G. Tonnquist, G. Jurell, M. Malm, 1988 .

Telespectrophotometric reflectance measurements for evaluating results after argon laser treatment of port-wine stain compared with natural color system notations.

G. Tonnquist, M. Malm, 1988 .

Telespectrophotometric Reflectance Measurements for Evaluating Results after Argon Laser Treatment of Port-wine Stain Compared with Natural Color System Notations

G. Tonnquist, M. Malm, 1988, Annals of Plastic Surgery.

NCS, natural color system—From concept to research and applications. Part II

Gunnar Tonnquist, Anders Hård, L. Sivik, 1996 .

Philosophy of perceptive color order systems

G. Tonnquist, 1986 .