Reference Label	Details
Butz 1990	K. W. Butz, D. J. Krajnovich, and C. S. Parmenter, J. Chem. Phys. 93, 1557-1567 (1990) An Experimental Potential Energy Surface for Internal Rotation in Glyoxal
Hubner 1997	H. Hübner, A. Leeser, A. Burkert, D. A. Ramsay, and W. Hüttner, J. Mol. Spectrosc. 184, 221-236 (1997) Microwave Spectra, Dipole Moments, and Torsional Potential Function of cis-Glyoxal and cis-Glyoxal-d1