APA
Göbbels M. J., Achten C. & Spitznas M. (19910712). Effect of topically applied oxymetazoline on tear volume and tear flow in humans. : Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie.
Chicago
Göbbels M J, Achten C and Spitznas M. 19910712. Effect of topically applied oxymetazoline on tear volume and tear flow in humans. : Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie.
Harvard
Göbbels M. J., Achten C. and Spitznas M. (19910712). Effect of topically applied oxymetazoline on tear volume and tear flow in humans. : Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie.
MLA
Göbbels M J, Achten C and Spitznas M. Effect of topically applied oxymetazoline on tear volume and tear flow in humans. : Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie. 19910712.