W. Lehmann

Liquid ring vacuum pumps and compressors with magnetic drive

W. Lehmann, 1995 .

Long-term experience with the liquefying stage and a 4.4 K cooling cycle of a 300 W refrigerator

K. Mendelssohn, W. Lehmann, H. Katheder, 1974 .

Edge emission of n-type conducting ZnO and CdS

W. Lehmann, W. Lehmann, 1966 .

Fast Cathodoluminescent Calcium Sulfide Phosphors

W. Lehmann, F. M. Ryan, W. Lehmann, 1972 .