Bredt, J. (1924). "Über sterische Hinderung in Brückenringen (Bredtsche Regel) und über die meso-trans-Stellung in kondensierten Ringsystemen des Hexamethylens". Justus Liebigs Ann. Chem. (in German). 437 (1): 1–13. doi:10.1002/jlac.19244370102.
Hall, H. K.; El-Shekeil, Ali (1980). "Anti-Bredt molecules. 3. 3-Oxa-1-azabicyclo[3.3.1]nonan-2-one and 6-oxa-1-azabicyclo[3.2.1]octan-7-one, two atom-bridged bicyclic urethanes possessing bridgehead nitrogen". J. Org. Chem.45 (26): 5325–5328. doi:10.1021/jo01314a022.
Li Huidong; Hu Yucheng; Wan Di; Zhang Ze; Fan Qunchao; King, R. Bruce; Schaefer, Henry F. "Dispersion Effects in Stabilizing Organometallic Compounds". Journal of Physical Chemistry A. doi:10.1021/acs.jpca.9b06769. Supporting Information.
Li Huidong; Hu Yucheng; Wan Di; Zhang Ze; Fan Qunchao; King, R. Bruce; Schaefer, Henry F. "Dispersion Effects in Stabilizing Organometallic Compounds". Journal of Physical Chemistry A. doi:10.1021/acs.jpca.9b06769. Supporting Information.