ETHZ - Theo van Doesburg Manifesto: Read the manifesto from Theo van Doesburg "Towards a plastic architecture" (1924).
Guggenheim Collection - Theo van Doesburg: Biography for Theo van Doesburg.
Leiden Promotie - Theo van Doesburg: Brief biography of Theo van Doesburg.
Rolland Collection: Theo van Doesburg: View a video clip from this film, it explores his life and work, with the emphasis on his architecture, through posthumous works and documentary evidence.