Pentreath, R.J. (1978)
237Pu experiments with the thornback ray Raja clavata. Marine Biology, 48(4), 337–342
DOI: 10.1007/BF00391637
Pentreath, R.J. (1973)
The accumulation from sea water of 65Zn, 54Mn, 58Co and 59Fe by the Thornback ray Raja clavata L. Journal of Experimental Marine Biology and Ecology, 12, 327–334
DOI: 10.1016/0022-0981(73)90062-2