Kirfel, J., Kelter, M., Cancela, L. M., Price, P. A., & Schüle, R. (1997). Identification of a novel negative retinoic acid responsive element in the promoter of the human matrix Gla protein gene. The National Academy of Sciences of the USA.

Kirfel, Jutta, Manuela Kelter, Leonor M. Cancela, Paul A. Price, ja Roland Schüle. Identification of a Novel Negative Retinoic Acid Responsive Element in the Promoter of the Human Matrix Gla Protein gene. The National Academy of Sciences of the USA, 1997.

Kirfel, Jutta, et al. Identification of a Novel Negative Retinoic Acid Responsive Element in the Promoter of the Human Matrix Gla Protein gene. The National Academy of Sciences of the USA, 1997.