Vladimir Solovyev and Max Scheler; attempt at a comparative interpretation. A contribution to the history of phenomenology /
Dahm, Helmut,1925-
Dordrecht,  Reidel, 
1975.
Translation of Vladimir Solov'ev und Max Scheler.
Solovyov, Vladimir Sergeyevich, 1853-1900.
Scheler, Max, 1874-1928.