References

Almquist, S. (1978). Robertus insignis O. P.-Cambr. described on material from Sweden (Araneae: Theridiidae). Entomologica Scandinavica 9(2): 124-128. doi: 10.1163/187631278X00052 -- Show included taxa

Almquist, S. (2005). Swedish Araneae, part 1 – families Atypidae to Hahniidae (Linyphiidae excluded). Insect Systematics & Evolution, Supplement 62: 1-284. -- Show included taxa

Heimer, S. & Nentwig, W. (1991). Spinnen Mitteleuropas: Ein Bestimmungsbuch. Paul Parey, Berlin, 543 pp. -- Show included taxa

Le Peru, B. (2011). The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mémoires de la Société Linnéenne de Lyon 2: 1-522. -- Show included taxa

Locket, G. H. & Millidge, A. F. (1953). British spiders. Vol. II. Ray Society, London, 449 pp. -- Show included taxa

Merrett, P. & Snazell, R. G. (1975). New and rare British spiders. Bulletin of the British Arachnological Society 3(4): 106-112. -- Show included taxa

Pickard-Cambridge, O. (1908a). On new and rare British Arachnida. Proceedings of the Dorset Natural History and Antiquarian Field Club 28(1907): 121-148, pl. A-B. [[published on May 9, 1908, after Sykes, 1941]] -- Show included taxa

Roberts, M. J. (1985). The spiders of Great Britain and Ireland, Volume 1: Atypidae to Theridiosomatidae. Harley Books Colchester, England, 229 pp. -- Show included taxa

Wiehle, H. (1960b). Beiträge zur Kenntnis der deutschen Spinnenfauna. Zoologische Jahrbücher, Abteilung für Systematik, Geographie und Biologie der Tiere 88: 195-254. -- Show included taxa

Wunderlich, J. (1976a). Zur Spinnenfauna Deutschlands, XVI. Zur Kenntnis der mitteleuropäischen Arten der Gattungen Enoplognatha Pavesi und Robertus O. Pick.-Cambridge. Senckenbergiana Biologica 57(1/3): 97-112. -- Show included taxa