P. Mottner, T. Butz, A. Lerf, G. Ledezma, H. Knozinger: MO-99(BETA(-))TC-99 SPECTROSCOPY OF MOS2, LITHIATED MOS2, CO0.5MOS2, AND MOS2 SURFACE SPECIES. 1995Journal of Physical Chemistry: 99. ISBN 0022-3654 http://dx.doi.org/10.1021/j100020a059