Ontology, C. G., Blake, J., Dolan, M., Drabkin, H., Hill, D., Li, N., … Westerfield, M. (2013). Gene Ontology annotations and resources. Nucleic Acids Research, 41(Database issue), D530-5. https://doi.org/10.1093/nar/gks1050

Piasecki, M., Ireland, A., Piasecki, J., Stashuk, D., McPhee, J., & Jones, D. (2018). The reliability of methods to estimate the number and size of human motor units and their use with large limb muscles. European Journal of Applied Physiology. https://doi.org/10.1007/s00421-018-3811-5 (Original work published 2018)