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Many thanks to everybody who provided advice, references and pdfs. I
am not in a position to summarize the theses put forward; but
whoever is interested now has the bibliographical references.<br>
<br>
Allow me, as an emeritus for quite a number of years, two general
suggestions, derived from communication on different topics of this
list:<br>
<ul>
<li>Not all of us have easy access to scientific publications. If
someone provides a bibliographic reference to something which is
online or of which he has a pdf, it is highly appreciated if the
reference comes accompanied by a link of by the pdf.</li>
<li>In order to keep the constructive atmosphere in which our
communication takes place and which is a presupposition for the
success of this list , I would request that everybody abstain
from insisting on political correctness. (Cf. the wording of the
preceding request.)</li>
</ul>
Best to everybody,<br>
Christian<br>
<div class="moz-signature">-- <br>
<p style="font-size:90%">Prof. em. Dr. Christian Lehmann<br>
Rudolfstr. 4<br>
99092 Erfurt<br>
<span style="font-variant:small-caps">Deutschland</span></p>
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<td>Tel.:</td>
<td>+49/361/2113417</td>
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<td>E-Post:</td>
<td><a class="moz-txt-link-abbreviated" href="mailto:christianw_lehmann@arcor.de">christianw_lehmann@arcor.de</a></td>
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<td>Web:</td>
<td><a class="moz-txt-link-freetext" href="https://www.christianlehmann.eu">https://www.christianlehmann.eu</a></td>
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