paper Weinziger R, Salgado LM, CN David and TCG Bosch (1994). Ks1, an epithelial cell specific gene, responds to early signals of head formation in Hydra. Development 120, 2511-2517.

paper Lopez de Haro M, LM Salgado, CN David, TCG Bosch (1994). Hydra tropomyosin Trop1 is expressed in head specific epithelial cells and is a major component of the cytoskeletal structure which anchors nematocytes. J Cell Sci, 107, 1403-1411.

paper Bolzer A, RM Melzer, TCG Bosch (1994) A SEM analysis of DMSO treated hydra polyps. Biol. Cell, 81, 83-86.