Description of an ancient social bee trapped in amber using diagnostic radioentomologyDOI: info:10.1007/s00040-011-0168-8v. 58No. 4Springer Basel AG487–494
Greco, M. K., Welz, P. M., Siegrist, M., Ferguson, S. J., Gallmann, P., Roubik, David Ward, and Engel, M. S. 2011. "Description of an ancient social bee trapped in amber using diagnostic radioentomology." Insectes Sociaux, 58, (4) 487–494. https://doi.org/10.1007/s00040-011-0168-8.