[Help-gsl] references for rk4imp and gear2 in version 1.13

[Halasz Gabor]

Hello,

I have a problem with finding proper references and descriptions for some 
methods I have used for solving ODEs with GSL version 1.13.
For the stepping functions gear1(2) the info page and the manuals only contain 
the following simple description: M=1(2) implicit Gear method.

I am especially interested in methods rk4imp and gear2 as all the other 
available ones in version 1.13  was not working properly for my ODEs.

Best regards,
Gábor