Published: Submitted to Physics Letters B
arXiv:astro-ph/070315
Published: Submitted to Nuclear Instruments and Methods B
arXiv:hep-ex/0406065
to be completed
Published: Phys. Lett. B472 (26 Jan 2000) 215-226
hep-ex/0002049
Published: Phys. Lett. B484 (27 Jun 2000) 10-22
Phys. Lett.B 484 (2000) 10-22
Published: Phys. Lett. B490 (28 Sep 2000) 27-35
Published: Phys. Lett. B494 (30 Nov 2000) 193-202
Published: Phys. Lett. B461 ( 2 Sep 1999) 387-396
hep-ex/0002048