Lifton RP, Goldberg ML, Karp RW, Hogness DS (1978). «The organization of the histone genes in Drosophila melanogaster: functional and evolutionary implications». Cold Spring Harbor Symposia on Quantitative Biology. 42 (2). pp. 1047–51. PMID98262. doi:10.1101/sqb.1978.042.01.105
Lifton RP, Goldberg ML, Karp RW, Hogness DS (1978). «The organization of the histone genes in Drosophila melanogaster: functional and evolutionary implications». Cold Spring Harbor Symposia on Quantitative Biology. 42 (2). pp. 1047–51. PMID98262. doi:10.1101/sqb.1978.042.01.105