References
- Barnett , L. 1950 . The Universe and Dr. Einstein , New York : Sloane .
- Cooper , L. F. 1948 . Time distortion in hypnosis . Bull., Georgetown Univ. Med. Center , 1 : 214 – 221 .
- Cooper , L. F. and Erickson , M. H. 1950 . Time distortion in hypnosis: II . Bull., Georgetown Univ. Med. Center , 4 : 50 – 68 .
- Cooper , L. F. and Rodgin , D. W. 1952 . Time distortion in hypnosis and nonmotor learning . Science , 115 : 500 – 502 .
- Cooper , L. F. and Tuthill , C. H. 1952 . Time distortion in hypnosis and motor learning . J. of Psychol , 34 : 67 – 76 .
- Sawyer , W. W. 1943 . Mathematician's Delight , Middlesex, , England : Penguin Books .