How I can mathematically convert from CIELAB (D65,10) to XYZ (D65,2) or RGB?

You can't. CIELAB can be converted back to XYZ using the simple inversion of the CIELAB equations, but there is no way to change from the 10 observer to the 2 observer in the process. As far as conversion to RGB, that requires a characterization for the monitor you are using.

A common choice is to convert to standard RGB (sRGB) values and there is a set of equations defined for that conversion. More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.