One of his most famous works is the novel Aniara (1956) which in 1959 became an Opera, composed by Karl-Birger Blomdahl.
Links:
http://www.kirjasto.sci.fi/harrymar.htm
... the more specific uses of the term, the most common include: 1. A supporter of King Charles I of England during the English Civil War. 2. In the UK, a ...