Andrew Appel, Leonard Harney, Guy Jacobson and Michael Loren Mauldin. Bruce Springsteen's manager, Mike Appel, produced the album. Jerry hosts an intervention for an old friend, Richie Appel. The four color theorem was ultimately proven in 1976 by Kenneth Appel and Wolfgang Haken. The first ray tracing algorithm used for rendering was presented by Arthur Appel in 1968. Richard James Appel (born May 21, 1963) is an American writer, producer and former attorney. The episode was written by Andrew Guest and directed by Eric Appel. Appel Theatre beginning in December 2019. The original Magnolia Bakery was opened in 1996 by Jennifer Appel and Allysa Torey. In 1994, Simpson returned to Los Angeles area with her then-husband, Richard Appel. In 1989, Ernesto Ruffo Appel (Baja California) became the first opposition governor. The showrunners are Appel and Callaghan. It was directed by Eric Appel, his first directing credit for the series. The long-term target, summarized by Frank Appel, Chief Executive Officer, is more aggressive. Alcohols are converted in and to iodide, by a mechanism similar to the Appel reaction.