I don’t know about the link but it’s pretty easy.
In c4d render settings in the save dialoge at the very bottom choose “after effects”, 3d data and reletive(if needed) name the file and hit save. Then render your 3D movie.
When done go to AE (you’ll need the C4D plugin first found in the MAXON directory) then go import then choose the the file with the .aec extension. In AE just 2x click on the comp in the project window… and you’re there.