A text file listing the required dependencies for the main scene to function correctly.

Are you trying to resolve missing assets in a specific 3D application, or

Common file extension format for packaged assets (e.g., in Virt-A-Mate).

Generally refers to a creator or brand producing digital 3D models or scenes.

It is likely not a "paper" (document/article) in the academic sense, but a meta-data file listing external dependencies.