Mindre Arbejder
Mindre Arbejder, Volume 1 (Danish Edition)
Mindre Arbejder, Volume 2 (Danish Edition)
Moderne Philosophen
Moderne Philosophen: Vorlesungen, Gehalten an Der Universitat in Kopenhagen Im Herbst 1902 (German Edition)
Modern philosophers, lectures delivered at the University of Copenhagen during the autumn of 1902, and Lectures on Bergson, delivered in 1913;