Olstad, B. H., Cabri, J. M., Zinner, C., Nunes, N., & Kjendlie, P. (2011). SEMG measurements on land and in water prior to and after 60-90 minutes of submersion (swimming) is highly reliable. Revista Portuguesa de Ciências do Desporto, 11(Suppl. 2), S. 763-765. http://ojs.ub.uni-konstanz.de/cpa/article/viewFile/4946/4588

Olstad, Bjørn Harald, Jan M.H Cabri, Christoph Zinner, Neuza Nunes, and Per-Ludvik Kjendlie. "SEMG Measurements On Land and in Water Prior to and After 60-90 Minutes of Submersion (swimming) Is Highly Reliable." Revista Portuguesa De Ciências Do Desporto 11, no. Suppl. 2 (2011): S. 763-765.

Olstad, Bjørn Harald, et al. "SEMG Measurements On Land and in Water Prior to and After 60-90 Minutes of Submersion (swimming) Is Highly Reliable." Revista Portuguesa De Ciências Do Desporto 11.Suppl. 2 (2011): S. 763-765.