1. Telomerase activity is repressed during differentiation of maturation-sensitive but not resistant human tumor cell lines;Albanell;Cancer Res.,1996
2. Scwämme (Porifera, Spongien);Arndt;Tabulae Biol.,1930
3. Barnes, R.D., 1987. Invertebrate Zoology. 5th ed., Saunders, Philadelphia, PA.
4. The spermatogenesis of Halichondria panicea (Porifera Demospongiae);Barthel;Zoomorphology,1990
5. Modulation of myb gene expression in sponges by retinoic acid;Biesalski;Oncogene,1992