Leuzinger, S., Hirth, F., Gerlich, D., Acampora, D., Simeone, A., Gehring, W.J., Finkelstein, R., Furukubo-Tokunaga, K., Reichert, H. (1998). Equivalence of the fly orthodenticle gene and the human OTX genes in embryonic brain development of Drosophila.
Development 125(9): 1703--1710.