ロジャー・ペンローズ
"Black Holes, Gravitational Radiation and the Universe: Essays in Honour of C.V.Vishveshwara,- Bala R. Iyer and Biplab Bhawal(eds)", (Kluwer Academic Publishers (1999)) contains essays contributed by Roger Penrose, Jacob Bekenstein, Abhay Ashtekar, Ashoke Sen etc.