Tortora, C., Napolitano, N. R., Spavone, M., La Barbera, F., D'Ago, G., Spiniello, C., Kuijken, K. H., Roy, N., Raj, M. A., Cavuoti, S., Brescia, M., Longo, G., Pota, V., Petrillo, C. E., Radovich, M., Getman, F., Koopmans, L. V. E., Trujillo, I., Verdoes Kleijn, G., Capaccioli, M., Grado, A., Covone, G., Scognamiglio, D., Blake, C., Glazebrook, K., Joudaki, S., Lidman, C., & Wolf, C. (2018). the first sample of spectroscopically confirmed ultra-compact massive galaxies in the Kilo Degree Survey. Monthly notices of the Royal Astronomical Society, 481(4), 4728–4752. http://access.bl.uk/ark:/81055/vdc_100095324851.0x000052