Basel (French: Bâle) is a city in the north of Switzerland. It is sometimes called Basle in English. Basel is the capital of the Swiss canton of Basel Stadt. It is surrounded by the Basel-Land canton. The city has a population of about 170,000 people.
- Grihault, Nicki 2011. Basle, Switzerland: A cultural guide. T Travel, Telegraph Media Group, London. 
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- Official website of the city of Basel (in German)