Peter L. Biermann

C. Castagnoli and G. Navarra

Nuclear Physics B - Proceedings Supplements 14 163 (1990)

Todor Stanev

Nuclear Physics B - Proceedings Supplements 14 17 (1990)

Michael L. Cherry

Nuclear Physics B - Proceedings Supplements 14 38 (1990)

M. De Palma et al.

Nuclear Physics B - Proceedings Supplements 14 69 (1990)

Yuichi Oyama

Nuclear Physics B - Proceedings Supplements 13 362 (1990)

Janusz Kempa and Jerzy Wdowczyk

Nuclear Physics B - Proceedings Supplements 13 398 (1990)

Masataka Fukugita

Nuclear Physics B - Proceedings Supplements 13 401 (1990)

Y. Oyama et al.

Phys. Rev. D 39 1481 (1989)

Peter L. Biermann

Todor Stanev

A. V. Butkevich, A. B. Kaidalov, P. I. Krastev, A. V. Leonov-Vendrovski, and I. M. Zheleznykh

Z. Phys. C - Particles and Fields 39 241 (1988)

J.M. Bonnet-Bidaud and G. Chardin

Physics Reports 170 325 (1988)

Trevor C. Weekes

Physics Reports 160 1 (1988)

T. K. Gaisser, Todor Stanev, and Giles Barr

Phys. Rev. D 38 85 (1988)

M. H. Reno and C. Quigg

Phys. Rev. D 37 657 (1988)

R. W. Robinett

Phys. Rev. D 37 84 (1988)

John Collins and Fred Olness

Physics Letters B 187 376 (1987)

T. K. Gaisser and Todor Stanev

Phys. Rev. Lett. 58 1695 (1987)

T. K. Gaisser and A. F. Grillo

Phys. Rev. D 36 2752 (1987)

J. R. Cudell and F. Halzen

Phys. Rev. D 36 346 (1987)

Francis Halzen

Nuclear Physics A 461 181 (1987)

R.J. Protheroe

Publ. Astron. Soc. Aust. 6 280 (1986)

Douglas W. McKay and John P. Ralston

Physics Letters B 167 103 (1986)

C. Quigg, M. H. Reno, and T. P. Walker

Phys. Rev. Lett. 57 774 (1986)