1. Wennerstrand, J. R., Personal communication. In: Levander, B., Zwetnow, N. N. (1978): Bulk flow of cerebrospinal fluid through a lumbo-omental pedicle graft in the dog. Acta Neurochir. (Wien)41 (1971), 147–155.
2. Wennerstrand, J. R., Levander, B., Lumbo-omental drainage of cerebrospinal fluid. A new experimental shunting procedure. Acta Chir. Scand.140 (1974), 91–94.
3. Levander, B., Bergwald, U., Wennerstrand, J. R., Åsard, P.-E., Omental transposition for drainage of cerebrospinal fluid. The Lancet., Sept. 28, 1974.
4. Levander, B., Granberg, P.-O., Wennerstrand, J. R., Åsard, P.-E., Omental transposition for drainage of cerebrospinal fluid in man. The Lancet, Oct. 11, 1975.
5. Al Sharif, H., Aboul-Dahb, Y. W., Abdel-Hafez, M. S., Ghaly, A. F., Hussein, A., The pericranium flap operation. A new operation for the treatment of progressive infantile hydrocephalus. Acta Neurochir. (Wien)41 (1978), 335–347.