Dear Kambiz, I located an electronic version of the thesis and uploaded it to our E-Print publication management system. It can be downloaded from http://eprints.eemcs.utwente.nl/6361/. Kind regards, Maurice van Keulen darabi@web.de wrote:

Hello,

sorry for this OT question.

I was reading the literature relevant to what I would like to do and found the papers of H. Steenhagen.

A thesis is referenced very often which I could order a dead-tree copy of. But that would probably take very long:

Title: Optimization of object query languages Author: Hendrika Janna Steenhagen (1954-) Year: 1995 Note: Proefschrift Universiteit Twente Met lit. opg., index. - Met een samenvatting in het Nederlands ISBN: 90-9008745-1

Does anybody on the list have a digital copy of it or knows where one is available?

Many thanks

Kambiz

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