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1by Hoogerwerf, E
Published 1997
//IF NOT LOGGED IN - FORCE LOGIN ?> //ELSE THEY ARE LOGGED IN PROCEED WITH THE OPEN URL CODE:?>Book -
2by Bouman, B
Published 1995
//IF NOT LOGGED IN - FORCE LOGIN ?> //ELSE THEY ARE LOGGED IN PROCEED WITH THE OPEN URL CODE:?>Thesis Book -
3