Shipments to the United States
Due to changes in U.S. customs regulations, all shipments to the United States are now subject to customs clearance.
This means that the recipient will be required to pay customs duties, as well as any applicable taxes and fees upon import.
Please also note that delivery may be delayed while the shipment is being processed by U.S. customs.
![Cover for Oleg V. Petrov · The Earth’s Free Oscillations: Formulation and Solution of the Fundamental Wave Equation of Nature (Paperback Book) [2021 edition] (2022)](https://imusic.b-cdn.net/images/item/original/196/9783030675196.jpg?oleg-v-petrov-2022-the-earth-s-free-oscillations-formulation-and-solution-of-the-fundamental-wave-equation-of-nature-paperback-book&class=scaled&v=1623563047)
![Cover for Oleg V. Petrov · The Earth’s Free Oscillations: Formulation and Solution of the Fundamental Wave Equation of Nature (Hardcover Book) [2021 edition] (2021)](https://imusic.b-cdn.net/images/item/original/165/9783030675165.jpg?oleg-v-petrov-2021-the-earth-s-free-oscillations-formulation-and-solution-of-the-fundamental-wave-equation-of-nature-hardcover-book&class=scaled&v=1614107362)
![Cover for Oleg V. Petrov · The Earth's Dissipative Structures: Fundamental Wave Properties of Substance - Springer Geophysics (Hardcover Book) [1st ed. 2019 edition] (2019)](https://imusic.b-cdn.net/images/item/original/130/9783319936130.jpg?oleg-v-petrov-2019-the-earth-s-dissipative-structures-fundamental-wave-properties-of-substance-springer-geophysics-hardcover-book&class=scaled&v=1547308990)