How should I cite the ImageJ macro?

[Weiwei]

Dear all,

Or better,

Dear Dr. Michael Schmid,

I used the ImageJ macro "radially averaged autocorrelation" to analyze my images (links below).
http://imagejdocu.tudor.lu/doku.php?id=macro:radially_averaged_autocorrelation

May I know how to cite this macro in a scientific paper?


With regards,
Weiwei