| Authors(s) | Bearhop S., Thompson D.R., Waldron S., Russell I.C., Alexander G. and Furness R.W. |
| Year | 1999 |
| Title | Stable isotopes indicate the extent of freshwater feeding by Cormorants Phalacrocorax carbo shot at inland fisheries in England. J. Appl. Ecol. 36: 75-84 |