Johannes Port, 
      Ziran Tao, 
      Annika Junger, 
      Christoph Joppek, 
      Philipp Tempel, 
      Kim Husemann, 
      Florian Singer, 
      Philipp Latzin, 
      Sophie Yammine, 
      Joachim H. Nagel, 
      Martin Kohlhäufl
  
  (2017).
  
A Simple Method to Reconstruct the Molar Mass Signal of Respiratory Gas to Assess Small Airways with a Double-Tracer Gas Single-Breath Washout.
  
Medical & biological engineering & computing.