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 Zhiyong Du · Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks: A Reinforcement Learning Perspective (Paperback Book) [2020 edition] (2020)](https://imusic.b-cdn.net/images/item/original/226/9789811511226.jpg?zhiyong-du-2020-towards-user-centric-intelligent-network-selection-in-5g-heterogeneous-wireless-networks-a-reinforcement-learning-perspective-paperback-book&class=scaled&v=1612101199)
![Cover for Zhiyong Du · Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks: A Reinforcement Learning Perspective (Hardcover Book) [2020 edition] (2019)](https://imusic.b-cdn.net/images/item/original/196/9789811511196.jpg?zhiyong-du-2019-towards-user-centric-intelligent-network-selection-in-5g-heterogeneous-wireless-networks-a-reinforcement-learning-perspective-hardcover-book&class=scaled&v=1608810028)