Is There a Connection Between Smell and Memory?

Olfactory cortex is located right beside the hippocampus. We've known there's this integration, this almost physical integration. But what this paper has shown is that the other senses haven't got this real direct connection or this activity with the hippocampus as the olfactory cortex. So it could be a possibility. I think this is a really interesting question and it's going to become more and more important.