| Type | Article |
| Authors(s) | Vepsäläinen, K. & S. Krajewski |
| Year | 1986 |
| Title | Identification of the waterstrider (Gerridae) nymphs of Northern Europe |
| Volume | 52 |
| Page(s) | 63-77 |
| Published in/Publisher | Annales Entomologici Fennici |
| Type | Article |
| Authors(s) | Vepsäläinen, K. & S. Krajewski |
| Year | 1986 |
| Title | Identification of the waterstrider (Gerridae) nymphs of Northern Europe |
| Volume | 52 |
| Page(s) | 63-77 |
| Published in/Publisher | Annales Entomologici Fennici |