In the field of economic history, the following, among others, are worthy of mention: Introdução ao estudo da economia portuguesa [Introduction to the Study of the Portuguese Economy] (1947, later published under the title A Revolução Industrial em Portugal no século XIX [The Industrial Revolution in Portugal in the 19th Century],1976); A economia portuguesa no século XX [The Portuguese Economy in the 20th Century] (1900-1925)" (1973); A evolução económica de Portugal dos séculos XII a XV [The Economic Evolution of Portugal from the 12th to the 15th Centuries] (1964-1967); As ideias económicas no Portugal medievo (séculos XII a XV) [Economic Ideas in Medieval Portugal (12th to 15th Centuries)] (1978); he is also the author of several articles in the Dicionário de História de Portugal (under Joel Serrão). In addition to the referenced historians, others have dedicated themselves to economic history, not only in research—evident in some of their works—but also in teaching and supervising academic work. Since it is impossible to refer in detail to the contribution of all of them here, their names and most significant works are mentioned. António Henrique de Oliveira Marques (1933-2007), besides his emphasis on economic history in his well-known História de Portugal [History of Portugal] (2 vols., 1972-1973) and Nova História de Portugal [New History of Portugal] (coordinated with Joel Serrão), he also authored: Hansa e Portugal na Idade Média [Hansa and Portugal in the Middle Ages] (1959); Introdução à história da agricultura em Portugal: A questão cerealífera durante a Idade Média [introduction to the History of Agriculture in Portugal: The Cereal Issue during the Middle Ages] (1962); and, although outside the period of this "Dictionary," Companhia Geral do Crédito Predial Português. 125 anos de História [Companhia Geral do Crédito Predial Português. 125 years of History] (1989). Fernando Piteira Santos (1918-1992), graduated in History and Philosophy of Science from the Faculty of Letters of the University of Lisbon, was a journalist, historian, and professor at the aforementioned Faculty (1974-1978). Although his work was primarily distinguished in politics, as a strong opponent of the regime, and in journalism, he bequeathed a work of interest for the economic history of the early nineteenth century: Geografia e Economia da Revolução de 1820 [Geography and Economics of the 1820 Revolution](1962).