Ellis, J., Gelmini, G., Lopez, J., Nanopoulos, D., & Sarkar, S. (1992). ASTROPHYSICAL CONSTRAINTS ON MASSIVE UNSTABLE NEUTRAL RELIC PARTICLES.

Ellis, J., G. Gelmini, J. Lopez, D. Nanopoulos, and S. Sarkar. ASTROPHYSICAL CONSTRAINTS ON MASSIVE UNSTABLE NEUTRAL RELIC PARTICLES. 1992.

Ellis, J., et al. ASTROPHYSICAL CONSTRAINTS ON MASSIVE UNSTABLE NEUTRAL RELIC PARTICLES. 1992.