Authors: AHRENS A LIPSKI A KLATTE S BUSSE HJ AULING G ALTENDORF K

Citation: A. Ahrens et al., POLYPHASIC CLASSIFICATION OF PROTEOBACTERIA ISOLATED FROM BIOFILTERS, Systematic and applied microbiology, 20(2), 1997, pp. 255-267

Authors: WILLIAMS KE CHAMBLESS DL AHRENS A

Citation: Ke. Williams et al., ARE EMOTIONS FRIGHTENING - AN EXTENSION OF THE FEAR OF FEAR CONSTRUCT, Behaviour research and therapy, 35(3), 1997, pp. 239-248

Authors: LUCKHAUPT H AHRENS A

Citation: H. Luckhaupt et A. Ahrens, CURRENT UNDERSTANDING OF ANAEROBIC INFECTIONS OF THE HEAD AND NECK, HNO. Hals-, Nasen-, Ohrenarzte, 41(4), 1993, pp. 222-229