@book{UBHD-1055153, author={Kruskopf, Erik}, title={Shaping the invisible}, subtitle={a study of the genesis of non-representational painting, 1908 - 1919}, publisher={Karkkilan Kirjapaino Ky}, address={Karkkila}, year={1976}, pages={181 S.}, language={eng}, library={UB [Signatur: 76 B 4054]}, }