Willi Alfred Boelcke was a German Economic and Social Historian, journalist, prolific author, essayist and retired university professor. The focus of his research and output has been on Germany during the nineteenth and twentieth centuries.[1]
^"Willi A. Boelcke". deutscher Wirtschafts- und Sozialhistoriker; Prof.; Dr. phil. Munzinger-Archiv GmbH., Ravensburg. 9 October 1989. Retrieved 22 June 2021.