Series volumes

Wichard, W. & Engel, M.S., 2006. A New Alderfly in Baltic Amber (Megaloptera: Sialidae). Amer. Mus. Novitates (no. 3513), 17 May 2006: 9 pp., 8 figs., 3 tables. ≡

Chapters

Weitschat, W. & Wichard, W., 2010. Chapter 6. Baltic Amber. In D. Penney (ed.), Biodiversity of Fossils in Amber from the Major World Deposits: 80-115. ≡