diff --git a/dist/general.go b/dist/general.go
index 4b93400a..04e00099 100644
--- a/dist/general.go
+++ b/dist/general.go
@@ -1,3 +1,8 @@
+// Copyright ©2014 The gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package dist provides univariate random distribution types.
 package dist
 
 // Parameter represents a parameter of a probability distribution
diff --git a/distmv/general.go b/distmv/general.go
index 4c2664e9..7dd2d5a0 100644
--- a/distmv/general.go
+++ b/distmv/general.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// Package distmv provides multivariate random distribution types.
 package distmv
 
 var (
diff --git a/distmv/normal_test.go b/distmv/normal_test.go
index f33ddfd6..d1b54dd2 100644
--- a/distmv/normal_test.go
+++ b/distmv/normal_test.go
@@ -1,3 +1,7 @@
+// Copyright ©2015 The gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
 package distmv
 
 import (
diff --git a/sample/example_burnin_test.go b/sample/example_burnin_test.go
index 318dc73a..52e66232 100644
--- a/sample/example_burnin_test.go
+++ b/sample/example_burnin_test.go
@@ -1,3 +1,7 @@
+// Copyright ©2015 The gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
 package sample
 
 import "github.com/gonum/stat/dist"
diff --git a/sample/example_rate_test.go b/sample/example_rate_test.go
index a05f70ef..79608edd 100644
--- a/sample/example_rate_test.go
+++ b/sample/example_rate_test.go
@@ -1,3 +1,7 @@
+// Copyright ©2015 The gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
 package sample
 
 import "github.com/gonum/stat/dist"
diff --git a/stat.go b/stat.go
index 7d019a47..f4e6de6c 100644
--- a/stat.go
+++ b/stat.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// Package stat provides generalized statistical functions.
 package stat
 
 import (