| Citation | Birkeland, C. 1974 Interactions between a sea pen and seven of its predators. Ecological Monographs 44:211-232. | 
| DOI / ISBN | |
| Paper URL | http://www.jstor.org/stable/1942312 | 
| Ref. No. | 94088 | 
| Language | English | 
| Usage | used in part | 
| Comments on the publication | |
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