Romert, A., Tuvendal, P., Simon, A., Dencker, L., & Eriksson, U. (1998). The identification of a 9-cis retinol dehydrogenase in the mouse embryo reveals a pathway for synthesis of 9-cis retinoic acid. The National Academy of Sciences.

Romert, Anna, Paulina Tuvendal, Andràs Simon, Lennart Dencker, và Ulf Eriksson. The Identification of a 9-cis Retinol Dehydrogenase in the Mouse Embryo Reveals a Pathway for Synthesis of 9-cis Retinoic Acid. The National Academy of Sciences, 1998.

Romert, Anna, et al. The Identification of a 9-cis Retinol Dehydrogenase in the Mouse Embryo Reveals a Pathway for Synthesis of 9-cis Retinoic Acid. The National Academy of Sciences, 1998.