^Van Waarde, A; Doorduin, J; De Jong, JR; Dierckx, RA; Elsinga, PH. Synthesis and preliminary evaluation of (S)-11C-exaprolol, a novel beta-adrenoceptor ligand for PET. Neurochemistry International. 2008, 52 (4–5): 729–33. PMID 17961850. doi:10.1016/j.neuint.2007.09.009.
^Carissimi, M; Gentili, P; Grumelli, E; Milla, E; Picciola, G; Ravenna, F. Basic ethers of cyclohexylphenols with beta-blocking activity: Synthesis and pharmacological study of exaprolol. Arzneimittel-Forschung. 1976, 26 (4): 506–16. PMID 8056.