Acak, M., Korkmaz, M. F., Taskiran, C., Demirkan, E. Julkaisussa Pedagogics, psychology, medical-biological problems of physical training and sports (2020)
Demirkan, E., Koz, M., Kutlu, M., Özal, M., Güclüöver, A., Favre, M. Julkaisussa Medicina dello Sport (2013)
Demirkan, E. Julkaisussa International Journal of Wrestling Science (2011)