Fuzzy Logic: Is it a Better Bibliography Retrieval Method for End-users? - Peter Ahrens (Essen Symposium, 1993)

Analysis of Tidal Breathing Flow Volume Loops for Automated Lung-Function Diagnosis in Infants. - Steffen Leonhardt; Peter Ahrens; Vojislav Kecman (IEEE Trans. Biomed. Eng., 2010)