Lexell, J.; Downham, D.; Sjöström, M. (1986). "Distribution of different fibre types in human skeletal muscles. Fibre type arrangement in m. vastus lateralis from three groups of healthy men between 15 and 83 years". Journal of the Neurological Sciences. 72 (2–3): 211–22. doi:10.1016/0022-510X(86)90009-2. PMID3711935. S2CID24326822.
"Jan Lexell", "Lund University", retrieved 26 February 2018
nih.gov
pubmed.ncbi.nlm.nih.gov
Lexell, J.; Downham, D.; Sjöström, M. (1986). "Distribution of different fibre types in human skeletal muscles. Fibre type arrangement in m. vastus lateralis from three groups of healthy men between 15 and 83 years". Journal of the Neurological Sciences. 72 (2–3): 211–22. doi:10.1016/0022-510X(86)90009-2. PMID3711935. S2CID24326822.
Lexell, J.; Downham, D.; Sjöström, M. (1986). "Distribution of different fibre types in human skeletal muscles. Fibre type arrangement in m. vastus lateralis from three groups of healthy men between 15 and 83 years". Journal of the Neurological Sciences. 72 (2–3): 211–22. doi:10.1016/0022-510X(86)90009-2. PMID3711935. S2CID24326822.