Comparative functional morphology of vein joints in Odonata, by Esther Appel and Stanislav N. Gorb: Stuttgart, E. Schweitzerbart'sche Verlagsbuchhandlung (Nägele u. Obermiller), 2014, 104 pp., €119 (paperback), ISBN 978-3-510-55046-3. Issue 2 (2nd April 2016)