$a The comparative anatomy of the nervous system of vertebrates, including man. Vol. 1 / C.U. Ariëns Kappers, G. Carl Huber, Elizabeth Caroline Crosby. - New York, 1960. $b (C. U. Ariëns Kappers, M.D., Sc.D., LL.D., director of the Central Institute of Brain Research, Amsterdam, and professor of Comparative Neurology in the University of Amsterdam)