Osswald, J., Kovnir, K., Armbrüster, M., Giedigkeit, R., Jentoft, R. E., Wild, U., et al. (2008). Palladium-gallium intermetallic compounds for the selective hydrogenation of acetylene Part II: Surface characterization and catalytic performance. Journal of Catalysis, 258, 219-227. doi:10.1016/j.jcat.2008.06.014.