Malhotra, B; Gandelman, K; Sachse, R; Wood, N; Michel, M. C. (). „The design and development of fesoterodine as a prodrug of 5-hydroxymethyl tolterodine (5-HMT), the active metabolite of tolterodine”. Curr. Med. Chem. 16 (33): 4481–9. doi:10.2174/092986709789712835. PMID19835561.
Malhotra, B; Gandelman, K; Sachse, R; Wood, N; Michel, M. C. (). „The design and development of fesoterodine as a prodrug of 5-hydroxymethyl tolterodine (5-HMT), the active metabolite of tolterodine”. Curr. Med. Chem. 16 (33): 4481–9. doi:10.2174/092986709789712835. PMID19835561.