Kamm, K., Osigus, H.-J., Stadler, P. F., DeSalle, R., & Schierwater, B. (2019). Genome analyses of a placozoan rickettsial endosymbiont show a combination of mutualistic and parasitic traits. Scientific Reports, 9(1): 17561. doi:10.1038/s41598-019-54037-w.