diff --git a/README.md b/README.md
index 12f5a89..9be287f 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ The *FineNight* library contains many algorithms for Finite State Automatons. Th
* Graphviz support
* Error-Tolerant IADFA
-Almost all algorithms were taken from the book [Introduction to Automata Theory, Languages, and Computation][1]. The minimization algorithm is an implementation of Brzozowski's method [2]. In this method, the (possibly non-deterministic) automaton is reversed, determinized, reversed and determinized. I'll eventually add the Hopcroft's nlog(n) minimization algorithm [3]
+Almost all algorithms were taken from the book [Introduction to Automata Theory, Languages, and Computation](#hopcroft01). The minimization algorithm is an implementation of Brzozowski's method [2]. In this method, the (possibly non-deterministic) automaton is reversed, determinized, reversed and determinized. I'll eventually add the Hopcroft's nlog(n) minimization algorithm [3]
-[1]: [John E. Hopcroft](http://www.cs.cornell.edu/Info/Department/Annual95/Faculty/Hopcroft.html), Rajeev Motwani and
+[John E. Hopcroft](http://www.cs.cornell.edu/Info/Department/Annual95/Faculty/Hopcroft.html), Rajeev Motwani and
Jefferey D. Ullman, Introduction to Automata Theory, Languages and Computation, 2nd edition, Adison-Wesley, 2001.