Citation
Eissenberg, J.C., James, T.C., Foster-Hartnett, D.M., Hartnett, T., Ngan, V.K.W., Craig, C., Elgin, S.C.R. (1990). Mutation in a heterochromatin-specific chromosomal protein are associated with suppression of position-effect variegation in D. melanogaster. J. Cell Biol. 111(5/2): 5a.