1. Abbott LC, Saunders JB deC M, Bost FC, Anderson CE: Injuries to the ligaments of the knee joint J Bone and Joint Surg 1944;26:503–521.
2. Ahmed AM, Hyder A, Burke DL, Chan KH: In-vitro ligament tension pattern in the flexed knee in passive loading. J Orthop Res 1987;5:217–230.
3. Alm A, Ekstrom H, Stromberg B: Tensile strength of the anterior cruciate ligament in the dog. Acta Chir Scand 1974;44:15–23.
4. Alm A, Stromberg B: Transposed medial third of patellar ligament in reconstruction of the anterior cruciate ligament: Surgical and morphological study in dogs. Acta Chir. Scand. Suppl. 1974; 445:37.
5. Amiel D, Kleiner JB, Akeson W: The natural history of the anterior cruciate ligament autograft of patellar tendon origin. Am J Sports Med 1986;14(6):449–462.