This work has been released into the public domain by its author, Herbee. This applies worldwide.
In some countries this may not be legally possible; if so: Herbee grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
La bildo estas kopiita de wikipedia:en. La originala priskribo estas: Cloned from [http://en.wikipedia.org/wiki/Image:Levy_C_Curve_final.gif Levy_C_Curve_final.gif], but colors inverted, image cropped, and converted to PNG. {{PD-user|Herbee}} {| bo