: If this was a recommendation for a research paper, it may be part of a larger "Library" or "Archive" folder maintained by that user.
While there is no specific "paper" authored by a user named "@Bluen7" in official academic databases, the reference likely points to a hosted on the cloud storage service Yandex Disk . @Bluen7 -• — Yandex.Disk
: Usernames like "@Bluen7" often appear in communities (such as Reddit, Telegram, or specialized forums) where users share direct links to their Yandex folders for specific resources. : If this was a recommendation for a