General Information:
EU-Community: https://www.daad.de/de/laenderinformationen/
EURES-Portal: https://ec.europa.eu/eures/main.jsp?acro=lw&lang=de&catId=490&parentId=0
Ratgeber "Studieren in Spanien" http://www.studying-in-spain.com/de/
Visa:
Visa types and requirements: https://www.expatica.com/new/es/moving/visas/visas-and-immigration-102354/
Entry and residence requirements:
Ministry of Foreign Affairs: https://www.exteriores.gob.es/en/Paginas/index.aspx
Social insurance:
Health:
Fit for Travel: https://www.fit-for-travel.de/reiseziel/spanien/
Accommodation:
Habitaciones en alquiler: http://easy-apartments-to-rent.com/
Realigro Real Estate: https://spain.realigro.com/for-sale/property/
Classifieds Apartments for Rent: https://www.gabinohome.com/en
Anuncios en Espana: https://www.olx.com.co/
Country information:
Wikipedia: https://en.wikipedia.org/wiki/Spain
Behaviour and Communication: http://www.cyborlink.com/besite/spain.htm
Kwintessential - Management Culture in Spain: https://www.kwintessential.co.uk/blog/culture/management-culture-in-spain
Culture Crossing: http://guide.culturecrossing.net/basics_business_student.php?id=189
"It's my treat today": http://www.aspetersen.de/spain_e.html
Further information:
Tourist information: https://www.spain.info/en/
Tourist information: https://www.spanish-fiestas.com/what-everybody-should-know-before-touring-spain/