Detto, Tanya; Jennions, Michael D; Backwell, Patricia R Y (2010). "When and Why Do Territorial Coalitions Occur? Experimental Evidence from a Fiddler Crab". The American Naturalist. 175 (5): E119–E125. doi:10.1086/651588. JSTOR651588. PMID20302425. S2CID44135001.
Elfström, S T (1997). "Fighting behavior and strategy of rock pipit, Anthus petrosus, neighbors: cooperative defense". Animal Behaviour. 54 (3): 535–542. doi:10.1006/anbe.1996.0492. PMID9299039. S2CID53152258.
Detto, Tanya; Jennions, Michael D; Backwell, Patricia R Y (2010). "When and Why Do Territorial Coalitions Occur? Experimental Evidence from a Fiddler Crab". The American Naturalist. 175 (5): E119–E125. doi:10.1086/651588. JSTOR651588. PMID20302425. S2CID44135001.
Detto, Tanya; Jennions, Michael D; Backwell, Patricia R Y (2010). "When and Why Do Territorial Coalitions Occur? Experimental Evidence from a Fiddler Crab". The American Naturalist. 175 (5): E119–E125. doi:10.1086/651588. JSTOR651588. PMID20302425. S2CID44135001.
Elfström, S T (1997). "Fighting behavior and strategy of rock pipit, Anthus petrosus, neighbors: cooperative defense". Animal Behaviour. 54 (3): 535–542. doi:10.1006/anbe.1996.0492. PMID9299039. S2CID53152258.
Tyler, Stephanie (2020). del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David A.; de Juana, Eduardo (eds.). "Rock Pipit (Anthus petrosus)". Birds of the World. Ithaca, NY, US: Cornell Lab of Ornithology. doi:10.2173/bow.rocpip1.01. S2CID216195668.
Detto, Tanya; Jennions, Michael D; Backwell, Patricia R Y (2010). "When and Why Do Territorial Coalitions Occur? Experimental Evidence from a Fiddler Crab". The American Naturalist. 175 (5): E119–E125. doi:10.1086/651588. JSTOR651588. PMID20302425. S2CID44135001.
Elfström, S T (1997). "Fighting behavior and strategy of rock pipit, Anthus petrosus, neighbors: cooperative defense". Animal Behaviour. 54 (3): 535–542. doi:10.1006/anbe.1996.0492. PMID9299039. S2CID53152258.
Töpfer, Till (2008). "Nachweise seltener Vogeltaxa (Aves) in Sachsen aus der ornithologischen Sammlung des Museums für Tierkunde Dresden" [Records of rare bird taxa (Aves) in Saxony from the ornithological collection of the Zoological Museum Dresden]. Faunistische Abhandlungen (in German). 26 (3): 63–101. ISSN0375-2135.
Bijlsma, R J (1977). "Voorkomen en oecologie van Anthus spinoletta spinoletta en A. s. littoralis in de uiterwaarden van de Rijn bij Wageningen" [Distribution and ecology of A. spinoletta and A. s. littoralis in the Rhine floodplain at Wageningen]. Limosa (in Dutch). 50 (3–4): 127–136. ISSN0024-3620.