Müller, Achim, Erich Krickemeyer, Hartmut Bögge, and Dieter Rehder. 1992. “Discrimination Between S²⁻ and SO²⁻ Sites in Mixed Crystal Compounds Containing Co and Co Mo Clusters by ⁵⁹Co-NMR Spectroscopy, and the Relevance for HDS Catalysis”.
CHIMIA 46 (9): 386.
https://doi.org/10.2533/chimia.1992.386.