1. H. Wachsmuth, Proposal to search for Cosmic Ray coincidences in the LEP-Detectors, Draft, 16 December 1993, CosmoLEP–Note 94.000.
2. A. Ball, G. Bonvicini, C. Grupen et al., CERN/LEPC 94–10, LEPC/M, 1994, p. 109.
3. C. Grupen, Siegen University preprint SI–95–06, published in ‘Wechselwirkungen’, Festschrift für Hinrich Meyer, S., 1995, p. 129.
4. L.W. Jones, unpublished note, 1994.
5. Observation of time correlations in cosmic rays