Flückiger M, Damur-Djuric N, Hässig M, Morgan J, Steffen F (2006). "A lumbosacral transitional vertebra in the dog predisposes to cauda equina syndrome". Vet Radiol Ultrasound. 47 (1): 39–44. doi:10.1111/j.1740-8261.2005.00103.x. PMID16429983.
Apazidis A, Ricart PA, Diefenbach CM, Spivak JM (September 2011). "The prevalence of transitional vertebrae in the lumbar spine". Spine J. 11 (9): 858–62. doi:10.1016/j.spinee.2011.08.005. PMID21951610.
Flückiger M, Damur-Djuric N, Hässig M, Morgan J, Steffen F (2006). "A lumbosacral transitional vertebra in the dog predisposes to cauda equina syndrome". Vet Radiol Ultrasound. 47 (1): 39–44. doi:10.1111/j.1740-8261.2005.00103.x. PMID16429983.
Apazidis A, Ricart PA, Diefenbach CM, Spivak JM (September 2011). "The prevalence of transitional vertebrae in the lumbar spine". Spine J. 11 (9): 858–62. doi:10.1016/j.spinee.2011.08.005. PMID21951610.