root.bib: Add missing $ ($30\U{$mu$m/s}$) in janovjak05 abstract

diff --git a/src/root.bib b/src/root.bib
index 25d1a31ebffee8daaeab534551d0e5707b7dc305..ddc40dc4a4bb7dbfd372559c71710077635c8ed5 100644 (file)
--- a/src/root.bib
+++ b/src/root.bib
@@ -8733,7 +8733,7 @@
     recorded over an extended range of pulling speeds (and thus
     loading rates). To support and illustrate our theoretical
     considerations, we experimentally evaluated the mechanical
-    unfolding of a multi-domain protein recorded at $30\U{$mu$m/s}
+    unfolding of a multi-domain protein recorded at $30\U{$mu$m/s}$
     pulling speed.},
 }