3A. Rahat,M. Rahat,J. B. Searle. A simple method for the preparation of hydra chromosome spreads: introducing chromosome counts into hydra taxonomy[J] 1985,Experientia(2):282～283
3T. C. Hsu,Sonia E. Spirito,Mary Lou Pardue. Distribution of 18+28S ribosomal genes in mammalian genomes[J] 1975,Chromosoma(1):25～36
4A. S. Henderson,D. Warburton,K. C. Atwood. Localization of rDNA in the chromosome complement of the Rhesus (Macaca mulatta)[J] 1974,Chromosoma(4):367～370
