Centre for Lusophone and European Literatures and Cultures Portugal, being home for more than 500 researchers, and the research unit with more young researchers in projects and positions of responsibility. Due to its established protocols, CLEPUL is part of an institutional network of cooperation for research in several areas of literary science and history of culture, including Portuguese institutions in Lisbon, Porto, Algarve and the Atlantic Islands, namely Madeira, and international institutions, such as in Australia and Canada, while keeping privileged relations with Lusophone countries, namely Brazil, Angola, Mozambique, Cape Verde, São Tomé and Príncipe and Guinea-Bissau. CLEPUL currently publishes six periodicals, to disseminate its scientific research results:
Language Spoken at Home spoken was a part of Summary File 3. For the 2000 census, data was published for 30 languages, chosen for their nationwide distribution, and 10 language groupings (see list below). Data from households which report languages other than the 30 are reported under the language groupings. Thus, languages which are widespread in certain areas of the country but not nationally get put together, even in block level data. Lithuanian, and Welsh are simply "Other Indo-European languages," Yoruba and Swahili are simply "African languages," and Indonesian and Hakka are simply "Other Asian languages." Several locally very well represented languages, such as