1. Earthworm functions. VIII. Population estimation techniques;Bouche;Rev. Ecol. Biol. Sol.,1984
2. Autumn diet of Golden Plovers Pluvialis apricuria on farmland and on a coastal heather moor in South Norway;Byrkjedal;Cinclus,1978
3. Summer food of the golden plover Pluvialis apricaria at Hardangervidda, southern Norway;Byrkjedal;Holarct. Ecol.,1980
4. Habitat use and resource overlap by breeding Golden Plovers and Dotterels (Pluvialis apricaria, Charadrius morinellus);Byrkjedal;J. Orn.,1989