Reference Label	Details
Bocquet 1996	R. Bocquet , J. Demaison, L. Poteau, M. Liedtke, S. Belov, K .M. T. Yamada, G. Winnewisser, C. Gerkec, J. Gripp, and Th. Köhler, J. Mol. Spectrosc. 177, 154-159 (1996) The Ground State Rotational Spectrum of Formaldehyde
Muller 2000	H. S. P. Müller, G. Winnewisser, J. Demaison, A. Perrin, and A. Valentin, J. Mol. Spectrosc. 200, 143 (2000) The Ground State Spectroscopic Constants of Formaldehyde