Private collection, Hørsholm
Nyt Tidsskrift For Kunstindustri, Year 2, 1929, Copenhagen, p. 121
Tina Jørstian and Poul Erik Munk Nielsen, PH 100 Light&Design, exh. cat., Danish Museum of Art & Design, Copenhagen, 1994, pp. 5, 11
Tina Jørstian and Poul Erik Munk Nielsen, eds., Light Years Ahead: The Story of the PH Lamp, Copenhagen, 2000, pp. 152, 157, 181, 225