Cazzola M, Matera MG, Lötvall J (tháng 7 năm 2005). “Ultra long-acting beta 2-agonists in development for asthma and chronic obstructive pulmonary disease”. Expert Opin Investig Drugs. 14 (7): 775–83. doi:10.1517/13543784.14.7.775. PMID16022567.
Beeh KM, Derom E, Kanniess F, Cameron R, Higgins M, van As A (tháng 5 năm 2007). “Indacaterol, a novel inhaled beta2-agonist, provides sustained 24-h bronchodilation in asthma”. Eur. Respir. J. 29 (5): 871–8. doi:10.1183/09031936.00060006. PMID17251236.
Cazzola M, Matera MG, Lötvall J (tháng 7 năm 2005). “Ultra long-acting beta 2-agonists in development for asthma and chronic obstructive pulmonary disease”. Expert Opin Investig Drugs. 14 (7): 775–83. doi:10.1517/13543784.14.7.775. PMID16022567.
Beeh KM, Derom E, Kanniess F, Cameron R, Higgins M, van As A (tháng 5 năm 2007). “Indacaterol, a novel inhaled beta2-agonist, provides sustained 24-h bronchodilation in asthma”. Eur. Respir. J. 29 (5): 871–8. doi:10.1183/09031936.00060006. PMID17251236.