GREAT PERFORMANCES AT THE MET: Die Walküre | KPBS Public Media
Robert Lepage's First Complete 'Ring' Concludes at Met - The New York Times
Amazon.com: Wagner: Der Ring des Nibelungen - Complete Ring Cycle (Levine, Metropolitan Opera) : Hildegard Behrens, James Morris, Jessye Norman, Christa Ludwig, Gary Lakes, Kurt Moll, Katarina Ikonomu, Martha Thigpen, Pyramid Sellers,
Great Performances at the Met: The Ring Cycle – Pasadena Art & Science Beat
Metropolitan Opera | The Ring Transformed
The Wagnerian: A History of Ring Cycle productions. Or: Whatever Became of the Breastplates?
The Met's Ring cycle: Wagner as it's meant to be? | Classical music | The Guardian