diff --git a/src/core/seller.cpp b/src/core/seller.cpp
index ab83c55..5e7edae 100644
--- a/src/core/seller.cpp
+++ b/src/core/seller.cpp
@@ -22,7 +22,7 @@ inline void Seller::setNumberOfOfferedArticles(int number) { numberOfOfferedArti
 
 int Seller::getNumberOfOfferedArticles() const { return static_cast<int>(articles_.size()); }
 
-void Seller::addArticle(Article article) { articles_.push_back(article); }
+void Seller::addArticle(std::shared_ptr<Article> article) { articles_.push_back(article); }
 
 std::string Seller::getFirstName() const { return firstName_; }
 
@@ -30,14 +30,14 @@ std::string Seller::getLastName() const { return lastName_; }
 
 int Seller::getSellerNo() const { return sellerNo_; }
 
-std::vector<Article*> Seller::getArticles(bool onlySold)
+std::vector<std::shared_ptr<Article>> Seller::getArticles(bool onlySold)
 {
-    std::vector<Article*> articles;
-    for (auto& article : articles_) {
-        if (onlySold && article.isSold()) {
-            articles.push_back(&article);
+    std::vector<std::shared_ptr<Article>> articles;
+    for (const auto article : articles_) {
+        if (onlySold && article->isSold()) {
+            articles.push_back(article);
         } else if (!onlySold) {
-            articles.push_back(&article);
+            articles.push_back(article);
         }
     }
     return articles;
diff --git a/src/core/seller.h b/src/core/seller.h
index eeeac29..63aebb2 100644
--- a/src/core/seller.h
+++ b/src/core/seller.h
@@ -4,6 +4,7 @@
 #include "article.h"
 #include "entity.h"
 
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -20,20 +21,20 @@ class Seller : public Entity
     void setFirstName(const std::string& firstName);
     void setLastName(const std::string& lastName);
     void setNumberOfOfferedArticles(int number);
-    void addArticle(Article article);
+    void addArticle(std::shared_ptr<Article> article);
 
     std::string getFirstName() const;
     std::string getLastName() const;
     int getSellerNo() const;
     int getNumberOfOfferedArticles() const;
-    std::vector<Article*> getArticles(bool onlySold = false);
+    std::vector<std::shared_ptr<Article>> getArticles(bool onlySold = false);
 
   private:
     int sellerNo_{-1};
     int numberOfOfferedArticles_{};
     std::string firstName_{};
     std::string lastName_{};
-    std::vector<Article> articles_{};
+    std::vector<std::shared_ptr<Article>> articles_{};
 };
 
 #endif
\ No newline at end of file
diff --git a/test/test_database.cpp b/test/test_database.cpp
index b963d8b..b2b4bf3 100644
--- a/test/test_database.cpp
+++ b/test/test_database.cpp
@@ -9,7 +9,6 @@
 
 BOOST_AUTO_TEST_CASE(create_database)
 {
-
     Database db(":memory:");
     BOOST_CHECK_NO_THROW(db.init());
 }
diff --git a/test/test_seller.cpp b/test/test_seller.cpp
index 5de2ed2..b389820 100644
--- a/test/test_seller.cpp
+++ b/test/test_seller.cpp
@@ -31,8 +31,8 @@ BOOST_AUTO_TEST_CASE(create_many)
 
 BOOST_AUTO_TEST_CASE(with_article) {
     Seller seller("Max", "Mustermann");
-    Article article{};
-    article.setDescription("Test article");
+    auto article = std::make_shared<Article>();
+    article->setDescription("Test article");
     seller.addArticle(article);
     BOOST_TEST(seller.getArticles().at(0)->getDescription() == "Test article");
 }
\ No newline at end of file