1. Observation of the interference between KLo and KSo in the πoπo decay mode
2. LAL Report;Wolff;Thesis,1971
3. A. Böhm, C. Grosso, V. Kaftanov, K. Kleinknecht, H.L. Lynch, C. Rubbia, J. Steinberger and K. Tittel, private communication.
4. presented at the 15th Int. Conf. on High Energy Physics;Carnegie,1970