See B. A. Reichenbach, Handbook of German Grammar (1987); W. B. Lockwood German Today (1987); W. M. Rivers, Teaching German (1988); C. V. J. Russ, ed., The Dialects of Modern German (1989); A. E. Hammer, German Grammar and Usage (1989).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.