Hartmann, A; Murer, K; De Bie, R. A.; De Bruin, E. D. (2009). "The effect of a foot gymnastic exercise programme on gait performance in older adults: A randomised controlled trial". Disability & Rehabilitation. 31 (25): 2101–10. doi:10.3109/09638280902927010. PMID19888840.
nih.gov
pubmed.ncbi.nlm.nih.gov
Hartmann, A; Murer, K; De Bie, R. A.; De Bruin, E. D. (2009). "The effect of a foot gymnastic exercise programme on gait performance in older adults: A randomised controlled trial". Disability & Rehabilitation. 31 (25): 2101–10. doi:10.3109/09638280902927010. PMID19888840.