Per anno

@article{apj-recurrent2020,
    apice = {ApjRecurrent2020},
    author = {Grimani, Catia and Cesarini, Andrea and Fabi, Michele and Sabbatini, Federico and Telloni, Daniele and Villani, Mattia},
    doi = {10.3847/1538-4357/abbb90},
    journal = {The Astrophysical Journal},
    month = nov,
    number = 1,
    numpages = 1,
    pages = {64},
    publisher = {American Astronomical Society},
    title = {Recurrent Galactic Cosmic-Ray Flux Modulation in L1 and Geomagnetic Activity during the Declining Phase of the Solar Cycle 24},
    url = {https://doi.org/10.3847/1538-4357/abbb90},
    volume = 904,
    year = 2020
}