diff --git a/index.tm b/index.tm
index 0c95dd7..5e0115b 100644
--- a/index.tm
+++ b/index.tm
@@ -28,6 +28,12 @@
     <item><hlink|国际数学奥林匹克竞赛|http://git.tmml.wiki/XmacsLabs/planet/raw/main/IMO/index.tm>
   </itemize>
 
+  <section*|大学课件>
+
+  <\itemize>
+    <item><hlink|北京师范大学|http://git.tmml.wiki/XmacsLabs/planet/raw/main/北京师范大学/index.tm>
+  </itemize>
+
   <section*|墨客一览>
 
   <\itemize>
@@ -56,6 +62,8 @@
     <associate|auto-1|<tuple|?|1>>
     <associate|auto-2|<tuple|<with|mode|<quote|math>|\<bullet\>>|1>>
     <associate|auto-3|<tuple|<with|mode|<quote|math>|\<bullet\>>|1>>
+    <associate|auto-4|<tuple|<with|mode|<quote|math>|\<bullet\>>|?>>
+    <associate|auto-5|<tuple|<with|mode|<quote|math>|\<bullet\>>|?>>
   </collection>
 </references>
 
diff --git a/北京师范大学/index.tm b/北京师范大学/index.tm
new file mode 100644
index 0000000..383dc33
--- /dev/null
+++ b/北京师范大学/index.tm
@@ -0,0 +1,59 @@
+<TeXmacs|2.1.3>
+
+<style|<tuple|generic|chinese>>
+
+<\body>
+  <\hide-preamble>
+    <assign|myspace|http://git.tmml.wiki/XmacsLabs/planet/raw/main/北京师范大学/>
+
+    <assign|gitlink|<macro|name|<hlink|<arg|name>|<merge|<value|myspace>|<arg|name>|.tm>>>>
+  </hide-preamble>
+
+  <doc-data|<doc-title|北京师范大学>>
+
+  <section*|课件列表>
+
+  <subsection*|2022年秋季：微积分>
+
+  <\itemize>
+    <item><gitlink|微积分/Chapter_1>
+  </itemize>
+
+  <subsection*|2022年秋季：偏微分方程>
+
+  <\itemize>
+    <item><gitlink|偏微分方程/Chapter_1>
+  </itemize>
+</body>
+
+<\initial>
+  <\collection>
+    <associate|page-medium|papyrus>
+  </collection>
+</initial>
+
+<\references>
+  <\collection>
+    <associate|auto-1|<tuple|?|1>>
+    <associate|auto-2|<tuple|?|1>>
+    <associate|auto-3|<tuple|<with|mode|<quote|math>|\<bullet\>>|?>>
+  </collection>
+</references>
+
+<\auxiliary>
+  <\collection>
+    <\associate|toc>
+      <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|试题列表>
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <no-break><pageref|auto-1><vspace|0.5fn>
+
+      <with|par-left|<quote|1tab>|2022年
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <no-break><pageref|auto-2>>
+
+      <with|par-left|<quote|1tab>|2021年
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <no-break><pageref|auto-3>>
+    </associate>
+  </collection>
+</auxiliary>
\ No newline at end of file