European Spine Society\nEuropean Spinal Deformities Society\nCervical Spine Research Society. European Section. (2003). European Spine Journal. Springer Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEuropean Spine Society\nEuropean Spinal Deformities Society\nCervical Spine Research Society. European Section. European Spine Journal. Heidelberg, Alemanha: Springer Verlag, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEuropean Spine Society\nEuropean Spinal Deformities Society\nCervical Spine Research Society. European Section. European Spine Journal. Springer Verlag, 2003.
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