G. A. P. Gibson, “Description of Leptoomus janzeni, n. gen. and n. sp. (Hymenoptera: Chalcidoidea) from Baltic amber, and discussion of its relationships and classification relative to Eupelmidae, Tanaostigmatidae and Encyrtidae”, Zootaxa, vol. 1730, no. 1, pp. 1–26, Mar. 2008.