Calling a procedure by its name

[Pascal Haakmat]

Hi,

This is not a guile-specific question but I'm not sure what would be a
better place to ask. 

I want to invoke a procedure using its name as a string. E.g. when I
have (define (test) (display 'hello)) then I want to do (call-by-name
"test"). What is the best way to do this?

Thanks,
Pascal.