| Authors(s) | Barthel, D., J. Sundet and K.-G. Barthel |
| Year | 1994 |
| Title | The boring sponge Cliona vastifica in a subarctic population of Chlamys islandica. An example of balanced commensalism? pp. 289-296. In: Van Soest et al., eds. Sponges in time and space. Balkema, Rotterdam. |