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 Alexander Kurzhanski · Ellipsoidal Calculus for Estimation and Control - Systems & Control: Foundations & Applications (Paperback Book) [Softcover reprint of the original 1st ed. 1997 edition] (2012)](https://imusic.b-cdn.net/images/item/original/907/9781461266907.jpg?alexander-kurzhanski-2012-ellipsoidal-calculus-for-estimation-and-control-systems-control-foundations-applications-paperback-book&class=scaled&v=1610343150)
![Cover for Alexander Kurzhanski · Ellipsoidal Calculus for Estimation and Control - Systems & Control: Foundations & Applications (Hardcover Book) [1994 edition] (1996)](https://imusic.b-cdn.net/images/item/original/999/9780817636999.jpg?alexander-kurzhanski-1996-ellipsoidal-calculus-for-estimation-and-control-systems-control-foundations-applications-hardcover-book&class=scaled&v=1410248644)
![Cover for Alexander Kurzhanski · Optimization, Parallel Processing and Applications: Proceedings of the Oberwolfach Conference on Operations Research, February 16-21, 1987 and the Workshop on Advanced Computation Techniques, Parallel Processing and Optimization Held at Karlsruhe, West Ge (Paperback Book) [Softcover reprint of the original 1st ed. 1988 edition] (1988)](https://imusic.b-cdn.net/images/item/original/530/9783540190530.jpg?alexander-kurzhanski-1988-optimization-parallel-processing-and-applications-proceedings-of-the-oberwolfach-conference-on-operations-research-february-16-21-1987-and-the-workshop-on-advanced-computation-techniques-parallel-processing-and-optimization-held-a&class=scaled&v=1521034689)