Where does one add a Springer LNCS publication in their CV? I was wondering where people add Springer LNCS or LNAI publications in their CV or list of publications, if they were to specify conference, journal or monograph separately.

Whereas Springer itself says it is not a journal, the wiki page says it is a collection of books whereas Scimago Journal and country rank treats it as a journal. I was always of the opinion earlier that it is kind of similar to a conference proceedings and could be listed under such if one were to categorize. Now I am not too certain.

Can someone clarify?
Since a LNCS publication can either be a monography or conference proceedings volume, the natural solution is to ignore the fact that it's a LNCS publication and just list it corresponding to its actual type, that is, proceedings volume (or entry therein), or monography.