01109oam 2200373 450 991048315950332120210629190041.03-030-67517-3(CKB)4900000000509008(MiAaPQ)EBC6466032(PPN)253256429(EXLCZ)99490000000050900820210629d2021 uy 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierThe Earth's free oscillations formulation and solution of the fundamental wave equation of nature /Oleg V. PetrovCham, Switzerland :Springer,[2021]©20211 online resource (xi, 106 pages) illustrations3-030-67516-5 Free earth oscillationsFree earth oscillations.551.1Petrov Oleg V.994735MiAaPQMiAaPQUtOrBLWBOOK9910483159503321The Earth's free oscillations2572030UNINA