Kendra, Sewall (2015). «Social Complexity as a Driver of Communication and Cognition.». Integrative and Comparative Biology55 (3): 384-395. PMID26078368. doi:10.1093/icb/icv064.
Alpin, L.M; Farine, D.R.; Morand-Ferron, J.; Cole, E.F.; Cockburn, A.; Sheldon, B.C. (2013). «Individual personalities predict social behaviour in wild networks of great tits (Parus major)». Ecology Letters16 (11): 1365-1372. PMID24047530. doi:10.1111/ele.12181. hdl:1885/66143.
Jokinen, S; Suhonen, J (1995). «Food Caching By Willow and Crested Tits: A Test of Scatterhoarding Models». Ecology76 (3): 892-898. JSTOR1939354. doi:10.2307/1939354.
Johannessen, Lars E. (2011). «Geographical variation in patterns of parentage and relatedness in the co-operatively breeding Ground Tit Parus humilis». Ibis153 (2): 373-383. doi:10.1111/j.1474-919X.2011.01115.x.
Gill, Frank B.; Slikas, Beth; Sheldon, Frederick H. (2005). «Phylogeny of titmice (Paridae): II. Species relationships based on sequences of the mitochondrial cytochrome-b gene». Auk122 (1): 121-143. doi:10.1642/0004-8038(2005)122[0121:POTPIS]2.0.CO;2.
Jokinen, S; Suhonen, J (1995). «Food Caching By Willow and Crested Tits: A Test of Scatterhoarding Models». Ecology76 (3): 892-898. JSTOR1939354. doi:10.2307/1939354.
Kendra, Sewall (2015). «Social Complexity as a Driver of Communication and Cognition.». Integrative and Comparative Biology55 (3): 384-395. PMID26078368. doi:10.1093/icb/icv064.
Alpin, L.M; Farine, D.R.; Morand-Ferron, J.; Cole, E.F.; Cockburn, A.; Sheldon, B.C. (2013). «Individual personalities predict social behaviour in wild networks of great tits (Parus major)». Ecology Letters16 (11): 1365-1372. PMID24047530. doi:10.1111/ele.12181. hdl:1885/66143.