APA
Andreas S., Batra A., Behr J., Chenot J., Gillissen A., Hering T., Herth F. J. F., Kreuter M., Meierjürgen R., Mühlig S., Nowak D., Pfeifer M., Raupach T., Schultz K., Sitter H., Walther J. W. & Worth H. (20150402). [Smoking cessation in patients with COPD]. : Pneumologie (Stuttgart, Germany).
Chicago
Andreas S, Batra A, Behr J, Chenot J-F, Gillissen A, Hering T, Herth F J F, Kreuter M, Meierjürgen R, Mühlig S, Nowak D, Pfeifer M, Raupach T, Schultz K, Sitter H, Walther J W and Worth H. 20150402. [Smoking cessation in patients with COPD]. : Pneumologie (Stuttgart, Germany).
Harvard
Andreas S., Batra A., Behr J., Chenot J., Gillissen A., Hering T., Herth F. J. F., Kreuter M., Meierjürgen R., Mühlig S., Nowak D., Pfeifer M., Raupach T., Schultz K., Sitter H., Walther J. W. and Worth H. (20150402). [Smoking cessation in patients with COPD]. : Pneumologie (Stuttgart, Germany).
MLA
Andreas S, Batra A, Behr J, Chenot J-F, Gillissen A, Hering T, Herth F J F, Kreuter M, Meierjürgen R, Mühlig S, Nowak D, Pfeifer M, Raupach T, Schultz K, Sitter H, Walther J W and Worth H. [Smoking cessation in patients with COPD]. : Pneumologie (Stuttgart, Germany). 20150402.