Federspiel, M. J., Bates, P., Young, J. A., Varmus, H. E., & Hughes, S. H. (1994). A system for tissue-specific gene targeting: Transgenic mice susceptible to subgroup A avian leukosis virus-based retroviral vectors.

Federspiel, M J., P. Bates, J A. Young, H E. Varmus, ja S H. Hughes. A System for Tissue-specific Gene Targeting: Transgenic Mice Susceptible to Subgroup A Avian Leukosis Virus-based Retroviral Vectors. 1994.

Federspiel, M J., et al. A System for Tissue-specific Gene Targeting: Transgenic Mice Susceptible to Subgroup A Avian Leukosis Virus-based Retroviral Vectors. 1994.