Вишновецький, Вадим Михайлович. “Legal Nature of Workers Attestation”. Scientific works of National Aviation University. Series: Law Journal "Air and Space Law" 1, no. 22 (March 30, 2012): С. 45–49. Accessed May 5, 2024. https://jrnl.nau.edu.ua/index.php/UV/article/view/6312.