Speech by José Echegaray in the National Assembly on 8 March 1873 (Journal of Sessions of the National Assembly number 19): (Accompanied by a commentary by Alejandro Nieto from his book “La Primera República Española”). RCG [Internet]. 2022 Jun. 30 [cited 2026 Sep. 15];(112):19-41. Available from: https://revista.cortesgenerales.es/rcg/article/view/1655