1. Burr, R G (1972). Urinary calcium, magnesium, crystals, and stones in paraplegia. Paraplegia, 10, 56–63.
2. Damanski, M (1963). Stone disease in paraplegia. Paraplegia, 1, 149–156.
3. Freeman, L W (1949). The metabolism of calcium in patients with spinal cord injuries. Ann. Surg., 129, 177.
4. Nordin, B E C & Hodgkinson, A (1967). Urolithiasis. Adv. Int. Med., 131, 155.
5. Pearman, J W (1971). Prevention of urinary tract infection following spinal cord injury. Paraplegia, 9, 95–104.