@article{article0ba390e4,
title   = {Can long-term periodic variability and jet helicity in 3C 120 be explained by jet precession?},
author = {Caproni, Anderson and Abraham, Zulema},
year = {2004},
doi = {10.1111/j.1365-2966.2004.07550.x},
journal   = {Monthly Notices of the Royal Astronomical Society}
}