<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Aptos;}
@font-face
{font-family:"Segoe UI";
panose-1:2 11 5 2 4 2 4 2 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:"Aptos",sans-serif;
mso-ligatures:standardcontextual;
mso-fareast-language:EN-US;}
span.E-MailFormatvorlage17
{mso-style-type:personal-compose;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:11.0pt;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=DE link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>The core drilling in our laboratories should be finished. However, please do not try to access the laboratories via the connecting corridor, as there is still a lot of dirt there.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal>Best,<o:p></o:p></p><p class=MsoNormal>Thomas<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='line-height:115%'><span lang=EN-US style='font-size:10.0pt;line-height:115%;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Prof. Dr. <span style='mso-ligatures:none'><o:p></o:p></span></span></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN-US style='font-size:12.0pt;line-height:115%;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Thomas Zentgraf<o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><span lang=EN-US style='font-size:10.0pt;line-height:115%;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Faculty of Science<o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><span lang=EN-US style='font-size:10.0pt;line-height:115%;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Department of Physics<o:p></o:p></span></p><p class=MsoNormal style='line-height:115%'><a href="http://www.uni-paderborn.de/en"><span style='font-size:10.0pt;line-height:115%;font-family:"Segoe UI",sans-serif;color:windowtext;mso-fareast-language:DE;text-decoration:none'><img border=0 width=165 height=72 style='width:1.7222in;height:.75in' id="Grafik_x0020_6" src="cid:image001.png@01DC6F61.47698200" alt="Paderborn University"></span></a><span style='font-size:10.0pt;line-height:115%;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Warburger Str. 100<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>DE-33098 Paderborn<o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Office</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> P10.2.133<o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Telephone</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> +49 5251 60-7100<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>E-Mail</span></b><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> <a href="mailto:thomas.zentgraf@uni-paderborn.de"><span style='color:blue'>thomas.zentgraf@uni-paderborn.de</span></a><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'>Web </span></b><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:blue;mso-fareast-language:DE'><a href="https://physik.uni-paderborn.de/zentgraf"><span style='color:#0563C1'>https://physik.uni-paderborn.de/zentgraf</span></a></span><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> <o:p></o:p></span></p><p class=MsoNormal><a href="https://www.instagram.com/uni_paderborn/"><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:windowtext;mso-fareast-language:DE;text-decoration:none'><img border=0 width=23 height=23 style='width:.243in;height:.243in' id="Grafik_x0020_5" src="cid:image002.png@01DC6F61.47698200" alt="UPB Instagramm"></span></a><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> </span><a href="https://www.facebook.com/unipaderborn"><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:windowtext;mso-fareast-language:DE;text-decoration:none'><img border=0 width=23 height=23 style='width:.243in;height:.243in' id="Grafik_x0020_4" src="cid:image003.png@01DC6F61.47698200" alt="UPB Facebook"></span></a><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> </span><a href="https://de.linkedin.com/school/uni-paderborn/"><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:windowtext;mso-fareast-language:DE;text-decoration:none'><img border=0 width=23 height=23 style='width:.243in;height:.243in' id="Grafik_x0020_3" src="cid:image004.png@01DC6F61.47698200" alt="UPB LinkedIn"></span></a><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-language:DE'> </span><a href="https://www.youtube.com/user/upbvideo"><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:windowtext;mso-fareast-language:DE;text-decoration:none'><img border=0 width=23 height=23 style='width:.243in;height:.243in' id="Grafik_x0020_1" src="cid:image005.png@01DC6F61.47698200" alt="UPB YouTube"></span></a><span style='font-size:10.0pt;font-family:"Segoe UI",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>