Carolan, James C. and Murray, Tomas E. and Fitzpatrick, Una and Crossley, John and Schmidt, Hans and Cederberg, Bjorn and McNally, Luke and Paxton, Robert J. and Williams, Paul H. and Brown, Mark J.F. (2012) Colour Patterns Do Not Diagnose Species: Quantitative Evaluation of a DNA Barcoded Cryptic Bumblebee Complex. PLoS ONE, 7 (1). e29251. ISSN 1932-6203

Williams, Paul H. and Brown, Mark J.F. and Carolan, James C. and An, Jiandong and Goulson, Dave and Aytekin, A. Murat and Best, Lincoln R. and Byvaltsev, Alexandr M. and Cederberg, Bjorn and Dawson, Robert and Huang, Jiaxing and Ito, Masao and Monfared, Alireza and Raina, Rifat H. and Schmid-Hempel, Paul and Sheffield, Cory S. and Šima, Peter and Xie, Zenghua (2012) Unveiling cryptic species of the bumblebee subgenus Bombus s. str. worldwide with COI barcodes (Hymenoptera: Apidae). Systematics and Biodiversity, 10 (1). pp. 21-56. ISSN 1477-2000

Williams, Paul H. and Brown, Mark J.F. and Carolan, James C. and An, Jiandong and Goulson, Dave and Aytekin, A. Murat and Best, Lincoln R. and Byvaltsev, Alexandr M. and Cederberg, Bjorn and Dawson, Robert and Huang, Jiaxing and Ito, Masao and Monfared, Alireza and Raina, Rifat H. and Schmid-Hempel, Paul and Sheffield, Cory S. and Šima, Peter and Xie, Zenghua (2012) Unveiling cryptic species of the bumblebee subgenus Bombus s. str. worldwide with COI barcodes (Hymenoptera: Apidae). Systematics and Biodiversity, 10 (1). pp. 21-56. ISSN 1477-2000