References etc.

2017-02-25 21:59:02 +02:00 · 2017-02-25 21:59:02 +02:00 · 0787324d1e
parent f81950a5a6
commit 0787324d1e
1 changed files with 2 additions and 1 deletions
--- a/chapter23.tex
+++ b/chapter23.tex
@ -749,7 +749,8 @@ $2 \rightarrow 1 \rightarrow 4 \rightarrow 2 \rightarrow 5$.
 \index{Kirchhoff's theorem}
 \index{spanning tree}

-\key{Kirchhoff's theorem} provides a way
+\key{Kirchhoff's theorem}\footnote{G. R. Kirchhoff (1824--1887) was
+a German physicist.} provides a way
 to calculate the number of spanning trees
 of a graph as a determinant of a special matrix.
 For example, the graph