1. Fermilab Experiment 537, Athens-Fermilab-McGill-Michigan-Shandong collaboration
2. Fermilab Experiment 705, Arizona-Athens-Duke-Fermilab-Florence- Florida A&MMcGill-Northwestern-Shandong collaboration
3. Fermilab Experiment 771, Arizona-Athens-Berkeley-Duke-Fermilab-Lecce- McGillNanking-Northwestern-Pavia-Pennsylvania-Prairie View A & M-Shandong collaboration
4. D.E. Wagoner et al., these proceedings
5. . E. Anassontzis et al., Nucl. Instr. and Methods A242, 215 (1986)