1. 1. von Willebrand E. A. Uber hereditäre Pseudohämophilie. Acta Med. Scand. 76(1931) 521-550.
2. 2. Nilsson I. M. and Holmberg L. von Willebrand's disease today. Clin. Haematol. 8(1979}. 147-168.
3. 3. Hoyer L. W. von Willebrand's disease. Prog. Hemostasis Thromb. 3(1976) 231-287.
4. 4. Silwer J. von Willebrand's disease in Sweden. Acta Pedìatr. Scand. (Suppl. 238) (1973). 1-159.
5. 5. Minot G. R. A familial hemorrhagic condition associated with prolongation of the bleeding time. Am. J. Med. Sci. 175 (1928) 301-306.