E. Nkyimbeng-Takwi, S. P. Chapoval: Biology and function of neuroimmune semaphorins 4A and 4D. In: Immunologic research. Band 50, Nummer 1, Mai 2011, S.10–21, doi:10.1007/s12026-010-8201-y, PMID 21203905, PMC3366695(freier Volltext).
E. Nkyimbeng-Takwi, S. P. Chapoval: Biology and function of neuroimmune semaphorins 4A and 4D. In: Immunologic research. Band 50, Nummer 1, Mai 2011, S.10–21, doi:10.1007/s12026-010-8201-y, PMID 21203905, PMC3366695(freier Volltext).