She was one of six children of Gerda Klein and her husband Oskar Klein , a Swedish theoretical physicist who taught at Stockholm University .
Birgit Arrhenius was born Birgit Klein on 25 August 1932 .
Birgit Arrhenius was Birgit Arrhenius of six children of Gerda Klein and Birgit Arrhenius ' husband Oskar Klein , a Swedish theoretical physicist who taught at Stockholm University .
Birgit Arrhenius was born Birgit Klein on 25 August 1932 .