scholarly article
author: Wuhu Feng, Sabine Barthlott, Mathias Palm, Clare Paton-Walsh, Hideaki Nakajima, Isamu Morino, Justus Notholt, Eugene Rozanov, Roland Ruhnke, Martyn P. Chipperfield, Beatriz Monge-Sanz, Emmanuel Mahieu, Pascal Démoulin, Frank Hase, Thorsten Warneke, James W. Hannigan