- Basic Formal Ontology CC-BY-4.0
Basic Formal Ontology project; creators: Alan Ruttenberg; Albert Goldfain; Barry Smith; Bill Duncan; Bjoern Peters; Chris Mungall; David Osumi-Sutherland; Fabian Neuhaus; Holger Stenzhorn; James A. Overton; Janna Hastings; Jie Zheng; Jonathan Bona; Larry Hunter; Leonard Jacuzzo; Ludger Jansen; Mark Ressler; Mathias Brochhausen; Mauricio Almeida; Melanie Courtot; Pierre Grenon; Randall Dipert; Ron Rudnicki; Selja Seppälä; Stefan Schulz; Thomas Bittner; Werner Ceusters; Yongqun "Oliver" He; original artifact license CC-BY-4.0 (http://creativecommons.org/licenses/by/4.0/); https://obofoundry.org/ontology/bfo.html
http://purl.obolibrary.org/obo/BFO_0000040 ; https://purl.obolibrary.org/obo/bfo.owl ; snapshot SHA-256 ca399c2b8b79f4d12b296d5c4ea4c00940e1f82cee7d1a50ddc292aa4f6c4666 ; exact artifact license http://creativecommons.org/licenses/by/4.0/ ; retrieved 2026-11-07