Blaue_Engel,_Der

Cinebooks Database - Blue Angel, The - Unsigned review (positive), rating.
IMDb - Blaue Engel, Der (1930) - Cast, credits, production information.
IOFilm - The Blue Angel - Pseudonymously signed review (positive) with emphasis on DVD production values, rating.
Strictly Film School - Josef von Sternberg - Blaue Engel, Der - Pseudonymously signed review essay.
BBC - The Blue Angel - Review by Almar Haflidason (positive) with emphasis on DVD production values, rating. (September 20, 2002)
Chicago Sun-Times - The Blue Angel - Review by Roger Ebert (predominantly positive), rating. (September 28, 2001)