ISBNs beginnend mit 978-90-411-xxxx-xI. Diederiks-Verschoor × An Introduction to Air Law I. Diederiks-VerschoorSpringer NetherlandHardcover1997 An Introduction to Space Law I. Diederiks-VerschoorSpringer NetherlandHardcover1999 An Introduction to Air Law I. Diederiks-VerschoorSpringer NetherlandHardcover2001