References

1

G. Ingelman, J. Phys. G19 (1993) 1633.

2

K. Goulianos, Phys. Rep. 101 (1983) 169; Nucl. Phys. B (Proc. Suppl.) 12 (1990) 110.

3

A. Donnachie and P.V. Landshoff, Nucl. Phys. B244 (1984) 322; A. Donnachie, these proceedings.

4

CDF Collab., F. Abe et al., Phys. Rev. D50 (1994) 5550.

5

H1 Collab., S. Aid et al., EPS-0473.

6

ZEUS Collab., M. Derrick et al., DESY 95-143.

7

H1 Collab., S. Aid et al., EPS-0490.

8

ZEUS Collab., M. Derrick et al., Phys. Lett. B356 (1995) 601.

9

ZEUS Collab., M. Derrick et al., EPS-0389.

10

ZEUS Collab., M. Derrick et al., EPS-0397.

11

H1 Collab., S. Aid et al., EPS-0468.

12

ZEUS Collab., M. Derrick et al., EPS-0386.

13

H1 Collab., S. Aid et al., EPS-0469.

14

H. Holtmann et al., HEP-PH-9503441.

15

CDF Collab., F. Abe et al., Phys. Rev. D50 (1994) 5535.

16

D. Aston et al., Nucl. Phys. B209 (1982) 56.

17

G.A. Schuler and T. Sjöstrand, Nucl. Phys. B407 (1993) 539.

18

A. Levy, DESY 95-204.

19

M. Ryskin et al., these proceedings.

20

M. Glück, E. Reya and A. Vogt, Phys. Lett. B306 (1993) 391.

21

N. Wulff, University of Hamburg thesis (1994), unpublished.

22

C. Berger, Proceedings of the Beijing Conference, August 1995.

23

H1 Collab., T. Ahmed et al., Phys. Lett. B348 (1995) 681; J. Dainton, DESY 95-228.

24

ZEUS Collab., M. Derrick et al., Z. Phys. C68 (1995) 569.

25

G. Ingelman and K. Jansen-Prytz, Z. Phys. C58 (1993) 285.

26

L. Lönnblad, Comp. Phys. Comm. 71 (1992) 15.

27

ZEUS Collab., M. Derrick et al., Contribution to the Beijing Conference, August 1995.

28

P. Bruni and G. Ingelman, DESY 93-187; Proceedings of the Europhysics Conference on HEP, Marseille 1993, 595.

29

N.N. Nikolaev and B.G. Zakharov, Z. Phys. C53 (1992) 331; M. Genovese, N.N. Nikolaev and B.G. Zakharov, KFA-IKP(Th)-1994-37 and CERN-TH.13/95.

30

W. Buchmüller and A. Hebecker, DESY 95-077.

31

H1 Collab., S. Aid et al., EPS-0491; J.P. Phillips, Proceedings of the Paris Conference, April 1995.

32

F. Close and J. Forshaw, HEP-PH-9509251.

33

ZEUS Collab., M. Derrick et al., Phys. Lett. B356 (1995) 129.

34

H.-U. Bengtsson and T. Sjöstrand, Comp. Phys. Comm. 46 (1987) 43; T. Sjöstrand, CERN-TH.6488/92.

35

ZEUS Collab., M. Derrick et al., DESY 95-194.

36

D0 Collab., S. Abachi et al., Phys. Rev. Lett. 72 (1994) 2332; D0 Collab., S. Abachi et al., FERMILAB-PUB-95-302-E (1995).

37

CDF Collab., F. Abe, et al., Phys. Rev. Lett. 74 (1995) 855.

38

A. Solano, Ph.D. Thesis, University of Torino 1993 (unpublished); A. Solano, Nucl. Phys. B (Proc. Suppl.) 25 (1992) 274.