diff --git a/src/main/java/org/apache/commons/math/special/Gamma.java b/src/main/java/org/apache/commons/math/special/Gamma.java
index 79aac51c9..9cdcb94f9 100644
--- a/src/main/java/org/apache/commons/math/special/Gamma.java
+++ b/src/main/java/org/apache/commons/math/special/Gamma.java
@@ -288,7 +288,7 @@ public class Gamma {
      * @param x  the argument
      * @return   digamma(x) to within 10-8 relative or absolute error whichever is smaller
      * @see <a href="http://en.wikipedia.org/wiki/Digamma_function"> Digamma at wikipedia </a>
-     * @see <a href="http://www.uv.es/~bernardo/1976AppStatist.pdf"> Bernardo's original article </a>
+     * @see <a href="http://www.uv.es/~bernardo/1976AppStatist.pdf"> Bernardo&apos;s original article </a>
      * @since 2.0
      */
     public static double digamma(double x) {
diff --git a/src/main/java/org/apache/commons/math/util/DefaultTransformer.java b/src/main/java/org/apache/commons/math/util/DefaultTransformer.java
index 73bb83019..e37184172 100644
--- a/src/main/java/org/apache/commons/math/util/DefaultTransformer.java
+++ b/src/main/java/org/apache/commons/math/util/DefaultTransformer.java
@@ -41,7 +41,7 @@ public class DefaultTransformer implements NumberTransformer, Serializable {
      * @return a double primitive representation of the Object o.
      * @throws MathException if it cannot successfully be transformed.
      * @throws NullArgumentException if is {@code null}.
-     * @see <a href="http://commons.apache.org/collections/api-release/org/apache/commons/collections/Transformer.html"/>
+     * @see <a href="http://commons.apache.org/collections/api-release/org/apache/commons/collections/Transformer.html">Commons Collections Transformer</a>
      */
     public double transform(Object o) throws MathException {
         if (o == null) {
diff --git a/src/main/java/org/apache/commons/math/util/FastMath.java b/src/main/java/org/apache/commons/math/util/FastMath.java
index 836084e8e..e6cdbb5d9 100644
--- a/src/main/java/org/apache/commons/math/util/FastMath.java
+++ b/src/main/java/org/apache/commons/math/util/FastMath.java
@@ -756,7 +756,7 @@ public class FastMath {
 
     /** Internal helper method for expm1
      * @param x number to compute shifted exponential
-     * @param hiPrecOut[] receive high precision result for -1.0 < x < 1.0
+     * @param hiPrecOut array to receive high precision result for -1.0 < x < 1.0
      * @return exp(x) - 1
      */
     private static double expm1(double x, double hiPrecOut[]) {
diff --git a/src/main/java/org/apache/commons/math/util/MultidimensionalCounter.java b/src/main/java/org/apache/commons/math/util/MultidimensionalCounter.java
index 437a8553e..1085e4e83 100644
--- a/src/main/java/org/apache/commons/math/util/MultidimensionalCounter.java
+++ b/src/main/java/org/apache/commons/math/util/MultidimensionalCounter.java
@@ -147,7 +147,7 @@ public class MultidimensionalCounter implements Iterable<Integer> {
         }
 
         /**
-         * @throws UnsupportedOperationException.
+         * @throws UnsupportedOperationException
          */
         public void remove() {
             throw new UnsupportedOperationException();