diff --git a/README.md b/README.md
index ef2fb8a..77b99ad 100644
--- a/README.md
+++ b/README.md
@@ -36,21 +36,21 @@ $ goscholar -h
 
 ```go
 // create Query and generate URL
-q := Query{Keywords:"deep learning", Author:"y bengio"} 
-url = q.SearchUrl()
+q := Query{Keywords:"nature 2015", Author:"y bengio", Title:"Deep learning"}
+url := q.SearchUrl()
 
 // fetch document sending the request to the URL
-doc, err := goscholar.Fetch(url)
+doc, err := Fetch(url)
 if err != nil {
-    log.Error(err)
+	log.Error(err)
 	return
 }
 
 // parse articles
-ch := make(chan *goscholar.Article, 10)
-go goscholar.ParseDocument(ch, doc)
-
+ch := make(chan *Article, 10)
+go ParseDocument(ch, doc)
 for a := range ch {
+	fmt.Println("---")
 	fmt.Println(a)
 }
 ```
diff --git a/article.go b/article.go
index d8d671c..848eeab 100644
--- a/article.go
+++ b/article.go
@@ -10,26 +10,26 @@ import (
 
 // Article stores the parsed results from Google Scholar.
 type Article struct {
-	Title             *Title
-	Year              string
-	ClusterId         string
-	NumCite           string
-	NumVer            string
-	InfoId            string
-	Link              *Link
+	Title             *Title `json:"title"`
+	Year              string `json:"year"`
+	ClusterId         string `json:"cluster_id"`
+	NumCite           string `json:"num_cite"`
+	NumVer            string `json:"num_ver"`
+	InfoId            string `json:"info_id"`
+	Link              *Link `json:"link"`
 }
 
 // Title is an attribute of Article.
 type Title struct {
-	Name string
-	Url string
+	Name string `json:"name"`
+	Url string `json:"url"`
 }
 
 // Link is an attribute of Article
 type Link struct {
-	Name string
-	Url  string
-	Format string
+	Name string `json:"name"`
+	Url  string `json:"url"`
+	Format string `json:"format"`
 }
 
 // NewArticle creates an Article in which all entry is blank.
diff --git a/article_test.go b/article_test.go
index 78074b4..4a02c1f 100644
--- a/article_test.go
+++ b/article_test.go
@@ -91,7 +91,7 @@ func ExampleString() {
 func ExampleJson() {
 	fmt.Println(article.Json())
 	// Output:
-	// {"Title":{"Name":"Deep learning via Hessian-free optimization","Url":"http://machinelearning.wustl.edu/mlpapers/paper_files/icml2010_Martens10.pdf"},"Year":"2010","ClusterId":"15502119379559163003","NumCite":"260","NumVer":"9","InfoId":"e6RSJHGXItcJ","Link":{"Name":"wustl.edu","Url":"http://machinelearning.wustl.edu/mlpapers/paper_files/icml2010_Martens10.pdf","Format":"PDF"}}
+	// {"title":{"name":"Deep learning via Hessian-free optimization","url":"http://machinelearning.wustl.edu/mlpapers/paper_files/icml2010_Martens10.pdf"},"year":"2010","cluster_id":"15502119379559163003","num_cite":"260","num_ver":"9","info_id":"e6RSJHGXItcJ","link":{"name":"wustl.edu","url":"http://machinelearning.wustl.edu/mlpapers/paper_files/icml2010_Martens10.pdf","format":"PDF"}}
 }
 
 func TestIsValid(t *testing.T) {
diff --git a/parse_test.go b/parse_test.go
index 4a53906..fb4e991 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -75,38 +75,24 @@ func checkWithFirst(doc *goquery.Document, aExpected *Article) (err error) {
 }
 
 func Example() {
-	ch := make(chan *Article, 10)
-
+	// create Query and generate URL
 	q := Query{Keywords:"nature 2015", Author:"y bengio", Title:"Deep learning"}
 	url := q.SearchUrl()
 
+	// fetch document sending the request to the URL
 	doc, err := Fetch(url)
 	if err != nil {
 		log.Error(err)
 		return
 	}
 
+	// parse articles
+	ch := make(chan *Article, 10)
 	go ParseDocument(ch, doc)
-	a := <- ch
-	fmt.Println(a)
-	// Output:
-	/*[Title]
-  Name: Deep learning
-  Url: http://www.nature.com/nature/journal/v521/n7553/abs/nature14539.html
-[Year]
-  2015
-[ClusterId]
-  5362332738201102290
-[NumCite]
-  390
-[NumVer]
-  7
-[InfoId]
-  0qfs6zbVakoJ
-[Link]
-  Name: psu.edu
-  Url: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.436.894&rep=rep1&type=pdf
-  Format: PDF*/
+	for a := range ch {
+		fmt.Println("---")
+		fmt.Println(a)
+	}
 }
 
 func TestParseSelection(t *testing.T) {