Interview with PETER MEHLMAN cont'd. From "Junior's" Restaurant in Brooklyn, MARVIN and ALAN ROSEN. MARVIN has collaborated on a new book about his family's Brooklyn restaurant renowned for its rich and creamy cheesecake. MARVIN inherited the restaurant from his father who opened it in 1950. ALAN is Marvin's nephew. The book is called "Welcome to Junior's: Remembering Brooklyn with Recipes and Memories from Its Favorite Restaurant" (William Morrow).12:58:30 NEXT SHOW PROMO (:29) PROMO COPY On the next Fresh Air..Former Seinfeld co-executive producer PETER MEHLMAN. He's the creator of ABC's new sit-com "It's Like, You Know." Also...Remembering a Brooklyn institution...JUNIOR'S. We'll talk with ALAN and MARVIN ROSEN about the changes this restaurant has had to make to survive 50 years. That's coming up on the next Fresh Air.