<Li> Ramón y Cajal, Santiago (1898). "Estructura del quiasma óptico y teoría general de los entrecruzamientos de las vías nerviosas . (Structure of the Chiasma opticum and general theory of the crossing of nerve tracks)" (Die Structur des Chiasma opticum nebst einer allgemeine Theorie der Kreuzung der Nervenbahnen (German, 1899, Verlag Joh . A. Barth)). Rev. Trim . Micrográfica (in Spanish). 3: 15--65 . </Li> <Li> Ramón y Cajal, Santiago (1899). Comparative study of the sensory areas of the human cortex . p. 85 . Archived from the original on 10 September 2009 . </Li> <Li> Ramón y Cajal, Santiago (1899--1904). Textura del sistema nervioso del hombre y los vertebrados (in Spanish). Madrid . <Ul> <Li>---- . Histologie du système nerveux de l'homme & des vertébrés (in French)--via Internet Archive . </Li> <Li>---- . Texture of the Nervous System of Man and the Vertebrates . </Li> </Ul> </Li> <Ul> <Li>---- . Histologie du système nerveux de l'homme & des vertébrés (in French)--via Internet Archive . </Li> <Li>---- . Texture of the Nervous System of Man and the Vertebrates . </Li> </Ul>

Who was the first to publish a description of the cells of the brain now called neurons