BibTex format
@article{CALVO:1995:10.1086/175661,
author = {CALVO, RA and CECCATTO, HA and PIACENTINI, RD},
doi = {10.1086/175661},
journal = {ASTROPHYSICAL JOURNAL},
pages = {916--921},
title = {NEURAL-NETWORK PREDICTION OF SOLAR-ACTIVITY},
url = {http://dx.doi.org/10.1086/175661},
volume = {444},
year = {1995}
}