Reference Label	Details
Leach 2003	S. Leach, M. Schwell, D. Talbi, G. Berthier, K. Hottmann, H.-W. Jochims, and H. Baumgärtel, Chem. Phys. 286, 15-43 (2003) He I Photoelectron Spectroscopy of Four Isotopologues of Formic Acid: HCOOH, HCOOD, DCOOH and DCOOD