Schikowski, T., Ranft, U., Sugiri, D., Vierkötter, A., Brüning, T., Harth, V., & Krämer, U. (2010). Decline in air pollution and change in prevalence in respiratory symptoms and chronic obstructive pulmonary disease in elderly women. BioMed Central.

Schikowski, Tamara, Ulrich Ranft, Dorothee Sugiri, Andrea Vierkötter, Thomas Brüning, Volker Harth, και Ursula Krämer. Decline in Air Pollution and Change in Prevalence in Respiratory Symptoms and Chronic Obstructive Pulmonary Disease in Elderly Women. BioMed Central, 2010.

Schikowski, Tamara, et al. Decline in Air Pollution and Change in Prevalence in Respiratory Symptoms and Chronic Obstructive Pulmonary Disease in Elderly Women. BioMed Central, 2010.