science-articles
BASE (Bielefeld)
A Bielefeld University academic search engine indexing over 400 million documents harvested from more than 12,000 content providers. The web portal is openly browsable for searching across this material. Its programmatic interface is limited to pre-registered IP addresses, so in practice you use it through the website.
Sin comprobación programática; abre la propia búsqueda del archivo.
Por qué es útil y cómo funciona
BASE (Bielefeld Academic Search Engine) is one of the largest academic search engines in the world, built by Bielefeld University from content harvested via the OAI-PMH protocol from thousands of repositories and data providers. You search across this enormous corpus on base-search.net using keyword, author, subject, or date filters. Because its programmatic interface is restricted to pre-registered institutions, Echo links you directly to the BASE search page so you can run your query there.
Qué contiene
More than 400 million documents from over 12,000 content providers, covering institutional repositories, digital libraries, and open-access journals across all disciplines and languages.
Acceso por API
Se requiere una clave de API (normalmente gratuita); consulta los endpoints anteriores para saber dónde obtenerla.
Acceso
May be geo- or IP-blocked from some networks.