Biezen, Frans C van, et al. “Impaction Bone-Grafting of Severely Defective Femora in Revision Total Hip Surgery: 21 Hips Followed for 41-85 Months”. Acta Orthopaedica, vol. 71, no. 2, Jan. 2000, pp. 135-42, doi:10.1080/000164700317413094.