scientific article
author: André Nel, Michael S. Engel, Jochen Heinrichs, Stanisław Adam Ślipiński, Jacek Szwedo, Vincent Perrichot, Sam William Heads, Daran Zheng, Robert A. Spicer, Mónica M. Solórzano Kraemer, Gongle Shi, Hong Pang, Kathrin Feldberg, Alexander Schmidt