| Authors(s) | Willems F.J. and De Vries E. |
| Year | 1998 |
| Title | Ecological aspects of Pygmy Cormorants Phalacrocorax pygmeus at Prespa, Greece, May-August 1996. WIWO Report 60: 70pp |
| Authors(s) | Willems F.J. and De Vries E. |
| Year | 1998 |
| Title | Ecological aspects of Pygmy Cormorants Phalacrocorax pygmeus at Prespa, Greece, May-August 1996. WIWO Report 60: 70pp |