@article{JETPL.118.562,
    title = {GRB 221009A, Its Precursor, and Two Afterglows in the Fermi Data},
    author = {Stern, B. and Tkachev, I.},
    journal = {JETP Lett.},
    volume = {118},
    issue = {8},
    pages = {553},
    year = {2023},
    doi = {10.1134/S0021364023602919},
    url = {http://jetpletters.ru/ps/dx/10.31857/S123456782320003X},
    note = {[Pisma v ZhETF 118, 562 (2023)]}
}