Acknowledgements

I would like to thank the following people for helping me with this thesis :

• my thesis supervisor Tom Duffy.
• Prof.Dr.Reiner Michaelis for the interview.
• Ingi and Hannes for ideas, research and materials.
• Dr.Dr. Manfred in der Beeck.
• Magarete Platzer .
• those who returned the questionnaire.
• Brian and Kevin for the help with the computer.
• the DLCAD-library staff .
• the library staff at TCD and the ILAC-Centre.
• Ross for proofreading.