links for registered users only

I RUN A WORDPRESS BLOG AND I POST Links to different stuff like open source programs, freewares etc…. i actually want that the visitors (unregistered or those who didnt login) should be able to see my whole post but not the links,,, and in the links space it should be written “register or sign in to view links” only registered and logged in users should be able to see the download links….is it possible?