References
- Volkov , SS . 2001 . Welding and bonding of polymer materials, a textbook for a higher technical schools , Moscow : Khimiya .
- Donskoi , AV . 1982 . Ultrasound electrical engineering equipment , 2nd ed. , Leningrad : Energoizdat .
- Kikuchi , E . 1972 . Ultrasound transducers , Moscow : Mir .
- Zaitsev , KI . 1988 . Welding of polymer materials, a handbook , Moscow : Mashinostroenie .
- Mozgovoi , IV . 1991 . Fundamentals of the technology of ultrasound welding of polymers , Krasnoyarsk : Krasnoyarsk State University .