1. “Lampbrush Chromosomes,”;Callan,1986
2. The lampbrush chromosomes of Xenopus laevis: Preparation, identification, and distribution of 5S DNA sequences;Callan;Chromosoma,1987
3. Isolation of nuclei and non-mitotic chromosome pairs from frog eggs;Duryee;Arch. Exp. Zellforsch.,1937
4. W.R. Duryee, (1941) The chromosomes of the amphibian nucleus, “Cytology, Genetics, and Evolution,” pp. 129–141. University of Pennsylvania Bicentennial Conference, Philadelphia, Pennsylvania
5. Chromosomal physiology in relation to nuclear structure;Duryee;Ann. N.Y. Acad. Sci.,1950