Cao LX, Le Bousse-Kerdiles MC, Clay D, et al. (1997). "Implication of a new molecule IK in CD34+ hematopoietic progenitor cell proliferation and differentiation". Blood. 89 (10): 3615–23. PMID9160666.
Assier E, Bouzinba-Segard H, Stolzenberg MC, et al. (1999). "Isolation, sequencing and expression of RED, a novel human gene encoding an acidic-basic dipeptide repeat". Gene. 230 (2): 145–54. doi:10.1016/S0378-1119(99)00066-9. PMID10216252.
Willers J, Häffner A, Zepter K, et al. (2001). "The interferon inhibiting cytokine IK is overexpressed in cutaneous T cell lymphoma derived tumor cells that fail to upregulate major histocompatibility complex class II upon interferon-gamma stimulation". J. Invest. Dermatol. 116 (6): 874–9. doi:10.1046/j.1523-1747.2001.01339.x. PMID11407974.