(原始内容存档于2016-08-06). [失效連結] Fitzhugh, E.W., Orpiment and Realgar, in Artists’ Pigments, A Handbook of Their History and Characteristics, Vol 3: E.W. Fitzhugh (Ed.) Oxford
菲茨休-南云方程(Fitzhugh-Nagumo equation)是一个非线性偏微分方程,最早由理查德·菲茨休(Richard FitzHugh)于1961年提出,描述了在高于阈值的常电流刺激下神经元动作电位的周期性振荡。当时菲茨休将其称为“朋霍费尔-范德波尔模型(Bonhoeffer-van der
History of the Vikings. London. Allen Lane, an imprint of Penguin Group. Fitzhugh, William W. and Ward, Elizabeth (2000). Vikings: The North Atlantic Saga