Norbye, Jan P. (1984). «Starting Over: War Wounds and Amputation». BMW - Bavaria's Driving Machines. Skokie, IL, USA: Publications International. p. 72. ISBN0-517-42464-9. (requiere registro). «The acquisition of Bramo instantly doubled the size of BMW's aircraft division, which acquired the new name of BMW Flugmotorenbau GmbH.»