The Role of Fine-Scale Magnetic Fields on the Structure of the Solar Atmosphere, Proceedings of the Inaugural workshop and round table discussion for the D-E-S Telescope installations on the Canary Islands, La Laguna, Tenerife, Spain, 6-12 October 1986. Edited by E.-H. Schröter, M. Vázquez, and A.A. Wyller. Cambridge: Cambridge University Press, 1987., p.32