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An introduction to money and banking
Campbell, Colin Dearborn, (1972)
Money, credit, & banking
Dunkman, William E., (1970)
Das deutsche Dollarproblem
Schmitt, Matthias, (1953)
Measuring Business Cycles
Burns, Arthur F.,
The National Bureau's Measures of Cyclical Behavior
Mitchell, Wesley Clair,
Mitchell on What Happens During Business Cycles