Bosch TCG and CN David (1987) Stem cells of Hydra magnipapillata can differentiate into somatic cells and germ line cells. Dev.Biol.121, 182-191.
R: David CN, TCG Bosch, B Hobmeyer, T Holstein, T Schmidt (1987) Interstitial stem cells in hydra. “Genetic control of development”, Alan R Liss, New York. p 389.