| Type | Article |
| Authors(s) | Gorczyca, J. |
| Year | 1990 |
| Title | Asthenarius quercus (Kirschbaum) and four species of Psallus Fieber (subgen. Hylopsallus Wagner) (Heteroptera, Miridae) in Poland |
| Volume | 60 |
| Page(s) | 195-203 |
| Published in/Publisher | Polskie Pismo Entomologiczne |